diff --git a/src/protocol/net/Session.cpp b/src/protocol/net/Session.cpp
index cbfbbd3..f5467c3 100644
--- a/src/protocol/net/Session.cpp
+++ b/src/protocol/net/Session.cpp
@@ -1,5 +1,6 @@
 #include "ki/protocol/net/Session.h"
 #include "ki/protocol/exception.h"
+#include <cstring>
 
 namespace ki
 {