diff --git a/include/SDL_config_win32.h b/include/SDL_config_win32.h
index d66110028..9dc1645b0 100644
--- a/include/SDL_config_win32.h
+++ b/include/SDL_config_win32.h
@@ -28,7 +28,7 @@
 /* This is a set of defines to configure the SDL features */
 
 #if !defined(_STDINT_H_) && (!defined(HAVE_STDINT_H) || !_HAVE_STDINT_H)
-#if defined(__GNUC__) || defined(__DMC__)
+#if defined(__GNUC__) || defined(__DMC__) || defined(__WATCOMC__)
 #define HAVE_STDINT_H	1
 #elif defined(_MSC_VER)
 typedef signed __int8 int8_t;
diff --git a/include/SDL_opengl.h b/include/SDL_opengl.h
index 37ae7e538..ef1ef19a6 100644
--- a/include/SDL_opengl.h
+++ b/include/SDL_opengl.h
@@ -4447,7 +4447,7 @@ typedef unsigned long long int uint64_t;
 typedef long int int32_t;
 typedef long long int int64_t;
 typedef unsigned long long int uint64_t;
-#elif defined(_WIN32) && defined(__GNUC__)
+#elif defined(_WIN32) && (defined(__GNUC__) || defined(__WATCOMC__))
 #include <stdint.h>
 #elif defined(_WIN32)
 typedef __int32 int32_t;