diff --git a/src/SDL_internal.h b/src/SDL_internal.h
index 369128237..e6da5271f 100644
--- a/src/SDL_internal.h
+++ b/src/SDL_internal.h
@@ -51,7 +51,8 @@
 
 #include "SDL_config.h"
 
-#if !defined(O_CLOEXEC) && !defined(HAVE_O_CLOEXEC)
+/* If you run into a warning that O_CLOEXEC is redefined, update the SDL configuration header for your platform to add HAVE_O_CLOEXEC */
+#ifndef HAVE_O_CLOEXEC
 #define O_CLOEXEC                       0
 #endif