diff --git a/include/string.h b/include/string.h
index 234a6cf..5f14c37 100644
--- a/include/string.h
+++ b/include/string.h
@@ -58,6 +58,10 @@
 #pragma GCC system_header
 #endif
 
+#ifdef __cplusplus
+#define __CORRECT_ISO_CPP_STRING_H_PROTO
+#endif
+
 #include_next <string.h>
 
 // MSVCRT, GNU libc and its derivates already have the correct prototype in