diff --git a/taglib/toolkit/tutils.h b/taglib/toolkit/tutils.h
index 2ade4d89..0874684a 100644
--- a/taglib/toolkit/tutils.h
+++ b/taglib/toolkit/tutils.h
@@ -44,6 +44,8 @@
 # include <sys/endian.h>
 #endif
 
+#include <cstring>
+
 namespace TagLib
 {
   namespace Utils