diff --git a/src/sdl/i_video.c b/src/sdl/i_video.c
index df3c93ebe..23e8f8e94 100644
--- a/src/sdl/i_video.c
+++ b/src/sdl/i_video.c
@@ -202,10 +202,12 @@ static SDL_bool Impl_CreateWindow(SDL_bool fullscreen);
 //static void Impl_SetWindowName(const char *title);
 static void Impl_SetWindowIcon(void);
 
+#ifdef HWRENDER
 void RefreshSDLSurface(void)
 {
 	OglSdlSurface(vid.width, vid.height);
 }
+#endif
 
 static void SDLSetMode(INT32 width, INT32 height, SDL_bool fullscreen)
 {