diff --git a/src/video/gem/SDL_gemvideo.c b/src/video/gem/SDL_gemvideo.c
index 874eb95a07ec3ac350ae393de06d3cd4e797a07b..1cf58278ccd8dea856de6e6a5cbd7db8961426e3 100644
--- a/src/video/gem/SDL_gemvideo.c
+++ b/src/video/gem/SDL_gemvideo.c
@@ -467,7 +467,7 @@ int GEM_VideoInit(_THIS, SDL_PixelFormat *vformat)
 	SDL_AtariGL_InitPointers(this);
 #endif
 
-	video->info.wm_available = 1;
+	this->info.wm_available = 1;
 
 	/* We're done! */
 	return(0);