diff --git a/apps/codecs/libmusepack/idtag.c b/apps/codecs/libmusepack/idtag.c
index 8af5ce4d3b..8f1c9d58fc 100644
--- a/apps/codecs/libmusepack/idtag.c
+++ b/apps/codecs/libmusepack/idtag.c
@@ -38,6 +38,7 @@
 
 #include "musepack.h"
 #include "internal.h"
+#include "string.h"
 
 mpc_int32_t
 JumpID3v2 (mpc_reader* r) {