diff --git a/cmd/files.go b/cmd/files.go
index f3b07b1..79a95df 100644
--- a/cmd/files.go
+++ b/cmd/files.go
@@ -72,7 +72,7 @@ func kill(path string, index *fileIndex) error {
 	return nil
 }
 
-func newFile(list []string, sortOrder string, regexes *regexes, formats *types.Types) (string, error) {
+func newFile(list []string, sortOrder string, regexes *regexes, formats types.Types) (string, error) {
 	path, err := pickFile(list)
 	if err != nil {
 		return "", err
@@ -118,7 +118,7 @@ func newFile(list []string, sortOrder string, regexes *regexes, formats *types.T
 	return path, nil
 }
 
-func nextFile(filePath, sortOrder string, regexes *regexes, formats *types.Types) (string, error) {
+func nextFile(filePath, sortOrder string, regexes *regexes, formats types.Types) (string, error) {
 	splitPath, _, err := split(filePath, regexes)
 	if err != nil {
 		return "", err
@@ -141,10 +141,10 @@ func nextFile(filePath, sortOrder string, regexes *regexes, formats *types.Types
 	return path, err
 }
 
-func tryExtensions(splitPath *splitPath, formats *types.Types) (string, error) {
+func tryExtensions(splitPath *splitPath, formats types.Types) (string, error) {
 	var path string
 
-	for extension := range formats.Extensions {
+	for extension := range formats {
 		path = fmt.Sprintf("%s%s%s", splitPath.base, splitPath.number, extension)
 
 		exists, err := fileExists(path)
@@ -198,7 +198,7 @@ func pathIsValid(path string, paths []string) bool {
 	}
 }
 
-func hasSupportedFiles(path string, formats *types.Types) (bool, error) {
+func hasSupportedFiles(path string, formats types.Types) (bool, error) {
 	hasRegisteredFiles := make(chan bool, 1)
 
 	err := filepath.WalkDir(path, func(p string, info os.DirEntry, err error) error {
@@ -229,7 +229,7 @@ func hasSupportedFiles(path string, formats *types.Types) (bool, error) {
 	}
 }
 
-func walkPath(path string, fileChannel chan<- string, stats *scanStatsChannels, formats *types.Types) error {
+func walkPath(path string, fileChannel chan<- string, stats *scanStatsChannels, formats types.Types) error {
 	errorChannel := make(chan error)
 	done := make(chan bool, 1)
 
@@ -321,7 +321,7 @@ Poll:
 	return nil
 }
 
-func scanPaths(paths []string, sort string, index *fileIndex, formats *types.Types) ([]string, error) {
+func scanPaths(paths []string, sort string, index *fileIndex, formats types.Types) ([]string, error) {
 	var list []string
 
 	fileChannel := make(chan string)
@@ -375,13 +375,13 @@ Poll:
 		case path := <-fileChannel:
 			list = append(list, path)
 		case stat := <-statsChannels.filesMatched:
-			stats.filesMatched = stats.filesMatched + stat
+			stats.filesMatched += stat
 		case stat := <-statsChannels.filesSkipped:
-			stats.filesSkipped = stats.filesSkipped + stat
+			stats.filesSkipped += stat
 		case stat := <-statsChannels.directoriesMatched:
-			stats.directoriesMatched = stats.directoriesMatched + stat
+			stats.directoriesMatched += stat
 		case stat := <-statsChannels.directoriesSkipped:
-			stats.directoriesSkipped = stats.directoriesSkipped + stat
+			stats.directoriesSkipped += stat
 		case err := <-errorChannel:
 			return []string{}, err
 		case <-done:
@@ -409,7 +409,7 @@ Poll:
 	return list, nil
 }
 
-func fileList(paths []string, filters *filters, sort string, index *fileIndex, formats *types.Types) ([]string, error) {
+func fileList(paths []string, filters *filters, sort string, index *fileIndex, formats types.Types) ([]string, error) {
 	switch {
 	case Index && !index.isEmpty() && filters.isEmpty():
 		return index.List(), nil
@@ -493,7 +493,7 @@ func normalizePath(path string) (string, error) {
 	return absolutePath, nil
 }
 
-func validatePaths(args []string, formats *types.Types) ([]string, error) {
+func validatePaths(args []string, formats types.Types) ([]string, error) {
 	var paths []string
 
 	for i := 0; i < len(args); i++ {
diff --git a/cmd/index.go b/cmd/index.go
index 07747aa..128dea8 100644
--- a/cmd/index.go
+++ b/cmd/index.go
@@ -158,7 +158,7 @@ func (index *fileIndex) Import(path string) error {
 	return nil
 }
 
-func serveIndexRebuild(args []string, index *fileIndex, formats *types.Types, errorChannel chan<- error) httprouter.Handle {
+func serveIndexRebuild(args []string, index *fileIndex, formats types.Types, errorChannel chan<- error) httprouter.Handle {
 	return func(w http.ResponseWriter, r *http.Request, p httprouter.Params) {
 		index.clear()
 
@@ -175,13 +175,13 @@ func serveIndexRebuild(args []string, index *fileIndex, formats *types.Types, er
 	}
 }
 
-func registerIndexHandlers(mux *httprouter.Router, args []string, index *fileIndex, formats *types.Types, errorChannel chan<- error) error {
+func registerIndexHandlers(mux *httprouter.Router, args []string, index *fileIndex, formats types.Types, errorChannel chan<- error) error {
 	registerHandler(mux, Prefix+"/rebuild_index", serveIndexRebuild(args, index, formats, errorChannel))
 
 	return nil
 }
 
-func importIndex(args []string, index *fileIndex, formats *types.Types) error {
+func importIndex(args []string, index *fileIndex, formats types.Types) error {
 	skipIndex := false
 
 	if IndexFile != "" {
diff --git a/cmd/info.go b/cmd/info.go
index c03aefa..ebe58e2 100644
--- a/cmd/info.go
+++ b/cmd/info.go
@@ -229,7 +229,7 @@ func serveAvailableExtensions() httprouter.Handle {
 	}
 }
 
-func serveEnabledExtensions(formats *types.Types) httprouter.Handle {
+func serveEnabledExtensions(formats types.Types) httprouter.Handle {
 	return func(w http.ResponseWriter, r *http.Request, p httprouter.Params) {
 		w.Header().Set("Content-Type", "text/plain")
 
@@ -271,7 +271,7 @@ func serveAvailableMimeTypes() httprouter.Handle {
 	}
 }
 
-func serveEnabledMimeTypes(formats *types.Types) httprouter.Handle {
+func serveEnabledMimeTypes(formats types.Types) httprouter.Handle {
 	return func(w http.ResponseWriter, r *http.Request, p httprouter.Params) {
 		w.Header().Set("Content-Type", "text/plain")
 
@@ -292,7 +292,7 @@ func serveEnabledMimeTypes(formats *types.Types) httprouter.Handle {
 	}
 }
 
-func registerInfoHandlers(mux *httprouter.Router, args []string, index *fileIndex, formats *types.Types, errorChannel chan<- error) {
+func registerInfoHandlers(mux *httprouter.Router, args []string, index *fileIndex, formats types.Types, errorChannel chan<- error) {
 	if Index {
 		registerHandler(mux, Prefix+"/html", serveIndexHtml(args, index, false))
 		if PageLength != 0 {
diff --git a/cmd/root.go b/cmd/root.go
index 1415f08..cf2a351 100644
--- a/cmd/root.go
+++ b/cmd/root.go
@@ -12,7 +12,7 @@ import (
 )
 
 const (
-	ReleaseVersion string = "2.4.0"
+	ReleaseVersion string = "2.5.0"
 )
 
 var (
diff --git a/cmd/web.go b/cmd/web.go
index e553742..f49f350 100644
--- a/cmd/web.go
+++ b/cmd/web.go
@@ -153,7 +153,7 @@ func serveStaticFile(paths []string, index *fileIndex, errorChannel chan<- error
 	}
 }
 
-func serveRoot(paths []string, regexes *regexes, index *fileIndex, formats *types.Types, errorChannel chan<- error) httprouter.Handle {
+func serveRoot(paths []string, regexes *regexes, index *fileIndex, formats types.Types, errorChannel chan<- error) httprouter.Handle {
 	return func(w http.ResponseWriter, r *http.Request, p httprouter.Params) {
 		refererUri, err := stripQueryParams(refererToUri(r.Referer()))
 		if err != nil {
@@ -236,7 +236,7 @@ func serveRoot(paths []string, regexes *regexes, index *fileIndex, formats *type
 	}
 }
 
-func serveMedia(paths []string, regexes *regexes, index *fileIndex, formats *types.Types, errorChannel chan<- error) httprouter.Handle {
+func serveMedia(paths []string, regexes *regexes, index *fileIndex, formats types.Types, errorChannel chan<- error) httprouter.Handle {
 	return func(w http.ResponseWriter, r *http.Request, p httprouter.Params) {
 		filters := &filters{
 			included: splitQueryParams(r.URL.Query().Get("include"), regexes),
@@ -433,9 +433,7 @@ func ServePage(args []string) error {
 		return errors.New("invalid bind address provided")
 	}
 
-	formats := &types.Types{
-		Extensions: make(map[string]types.Type),
-	}
+	formats := make(types.Types)
 
 	if Audio || All {
 		formats.Add(audio.Format{})
@@ -459,7 +457,7 @@ func ServePage(args []string) error {
 
 	// enable image support if no other flags are passed, to retain backwards compatibility
 	// to be replaced with rootCmd.MarkFlagsOneRequired on next spf13/cobra update
-	if Images || All || len(formats.Extensions) == 0 {
+	if Images || All || len(formats) == 0 {
 		formats.Add(images.Format{})
 	}
 
diff --git a/types/types.go b/types/types.go
index ebc0b8f..335525a 100644
--- a/types/types.go
+++ b/types/types.go
@@ -10,9 +10,7 @@ import (
 	"strings"
 )
 
-var SupportedFormats = &Types{
-	Extensions: make(map[string]Type),
-}
+var SupportedFormats = make(Types)
 
 type Type interface {
 	Type() string
@@ -24,21 +22,19 @@ type Type interface {
 	Validate(filePath string) bool
 }
 
-type Types struct {
-	Extensions map[string]Type
-}
+type Types map[string]Type
 
-func (t *Types) Add(format Type) {
+func (t Types) Add(format Type) {
 	for k := range format.Extensions() {
-		_, exists := t.Extensions[k]
+		_, exists := t[k]
 		if !exists {
-			t.Extensions[k] = format
+			t[k] = format
 		}
 	}
 }
 
-func (t *Types) FileType(path string) Type {
-	fileType, exists := t.Extensions[filepath.Ext(path)]
+func (t Types) FileType(path string) Type {
+	fileType, exists := t[filepath.Ext(path)]
 	if exists {
 		return fileType
 	}
@@ -46,12 +42,12 @@ func (t *Types) FileType(path string) Type {
 	return nil
 }
 
-func (t *Types) Register(format Type) {
+func (t Types) Register(format Type) {
 	t.Add(format)
 }
 
-func (t *Types) Validate(path string) bool {
-	format, exists := t.Extensions[filepath.Ext(path)]
+func (t Types) Validate(path string) bool {
+	format, exists := t[filepath.Ext(path)]
 	if !exists {
 		return false
 	}
@@ -59,14 +55,14 @@ func (t *Types) Validate(path string) bool {
 	return format.Validate(path)
 }
 
-func (t *Types) GetExtensions() string {
+func (t Types) GetExtensions() string {
 	var output strings.Builder
 
-	extensions := make([]string, len(t.Extensions))
+	extensions := make([]string, len(t))
 
 	i := 0
 
-	for k := range t.Extensions {
+	for k := range t {
 		extensions[i] = k
 		i++
 	}
@@ -80,12 +76,12 @@ func (t *Types) GetExtensions() string {
 	return output.String()
 }
 
-func (t *Types) GetMimeTypes() string {
+func (t Types) GetMimeTypes() string {
 	var output strings.Builder
 
 	var mimeTypes []string
 
-	for _, j := range t.Extensions {
+	for _, j := range t {
 		extensions := j.Extensions()
 		for _, v := range extensions {
 			mimeTypes = append(mimeTypes, v)