1 files changed, 2 insertions, 0 deletions
diff --git a/src/mgl.h b/src/mgl.h
index d6165dc0d..335ee48f1 100644
--- a/src/mgl.h
+++ b/src/mgl.h
@@ -29,7 +29,9 @@
 #include <GLES/glext.h>
 #define APIENTRY GL_APIENTRY
 #else
+#ifndef USE_SDL2
 #define GL_GLEXT_PROTOTYPES 1
+#endif
 #include <SDL_opengl.h>
 #include <GL/glext.h>
 #endif