diff --git a/reactos/include/crt/crtdefs.h b/reactos/include/crt/crtdefs.h
index 03bbb9be4e4..b1f23ed87a1 100644
--- a/reactos/include/crt/crtdefs.h
+++ b/reactos/include/crt/crtdefs.h
@@ -4,7 +4,9 @@
  * No warranty is given; refer to the file DISCLAIMER within this package.
  */
 #include <_mingw.h>
+#ifndef __cplusplus
 #include <specstrings.h>
+#endif
 
 #ifndef _INC_CRTDEFS
 #define _INC_CRTDEFS