diff --git a/src/apps/charactermap/CharacterView.cpp b/src/apps/charactermap/CharacterView.cpp
index facbbcd47a..2a374c0807 100644
--- a/src/apps/charactermap/CharacterView.cpp
+++ b/src/apps/charactermap/CharacterView.cpp
@@ -7,6 +7,7 @@
 #include "CharacterView.h"
 
 #include <stdio.h>
+#include <string.h>
 
 #include <Bitmap.h>
 #include <LayoutUtils.h>
diff --git a/src/apps/charactermap/CharacterWindow.cpp b/src/apps/charactermap/CharacterWindow.cpp
index 705fdbfe92..f27fe8c8ab 100644
--- a/src/apps/charactermap/CharacterWindow.cpp
+++ b/src/apps/charactermap/CharacterWindow.cpp
@@ -7,6 +7,7 @@
 #include "CharacterWindow.h"
 
 #include <stdio.h>
+#include <string.h>
 
 #include <Application.h>
 #include <File.h>