diff --git a/cmd/files.go b/cmd/files.go
index 455cb17..40a73e7 100644
--- a/cmd/files.go
+++ b/cmd/files.go
@@ -22,7 +22,7 @@ import (
 	"seedno.de/seednode/roulette/types"
 )
 
-const ignoreFilePattern string = `^[A-z0-9.]+$`
+const ignoreFilePattern string = `^[A-z0-9.-_]+$`
 
 type regexes struct {
 	alphanumeric *regexp.Regexp
diff --git a/cmd/root.go b/cmd/root.go
index 97baa8a..9a858ee 100644
--- a/cmd/root.go
+++ b/cmd/root.go
@@ -14,7 +14,7 @@ import (
 )
 
 const (
-	ReleaseVersion string = "3.5.0"
+	ReleaseVersion string = "3.5.1"
 )
 
 var (