diff --git a/include/SDL_config_os2.h b/include/SDL_config_os2.h
index 9be6b2d50e..b2b061d716 100644
--- a/include/SDL_config_os2.h
+++ b/include/SDL_config_os2.h
@@ -114,9 +114,6 @@
 #define HAVE_MEMCPY 1
 #define HAVE_MEMMOVE 1
 #define HAVE_MEMCMP 1
-#define HAVE_WCSLEN 1
-#define HAVE_WCSLCPY 1
-#define HAVE_WCSLCAT 1
 #define HAVE_WCSCMP 1
 #define HAVE__WCSICMP 1
 #define HAVE__WCSNICMP 1