diff --git a/shared.c b/shared.c
index 722cb53..3fd1966 100644
--- a/shared.c
+++ b/shared.c
@@ -1859,7 +1859,7 @@ int loadimagesets(void) {
 						printf("error rotozooming sprite %d, deadimage %d\n",p,fr);
 						exit(1);
 					}
-					SDL_SetColorKey(tempimg, SDL_RLEACCEL, 0);
+					SDL_SetColorKey(tempimg, SDL_SRCCOLORKEY|SDL_RLEACCEL, SDL_MapRGB(screen->format, 0, 0, 0));
 					imageset[p].img[fr] = SDL_DisplayFormat(tempimg);
 					SDL_FreeSurface(tempimg);
 				}