--- include/id3/id3lib_strings.h
+++ include/id3/id3lib_strings.h
@@ -30,6 +30,7 @@
 #define _ID3LIB_STRINGS_H_
 
 #include <string>
+#include <cstring>
 
 #if (defined(__GNUC__) && (__GNUC__ >= 3) || (defined(_MSC_VER) && _MSC_VER > 1000))
 namespace std
--- include/id3/writers.h
+++ include/id3/writers.h
@@ -30,7 +30,7 @@
 
 #include "id3/writer.h"
 #include "id3/id3lib_streams.h"
-//#include <string.h>
+#include <cstring>
 
 class ID3_CPP_EXPORT ID3_OStreamWriter : public ID3_Writer
 {
