diff --git a/src/video/SDL_surface.c b/src/video/SDL_surface.c
index b5fbba1aa..c051d8368 100644
--- a/src/video/SDL_surface.c
+++ b/src/video/SDL_surface.c
@@ -688,7 +688,8 @@ int SDL_BlitSurface(SDL_Surface *src, const SDL_Rect *srcrect,
                   SDL_Surface *dst, SDL_Rect *dstrect)
 {
     SDL_Rect fulldst;
-    int srcx, srcy, w, h;
+    int srcx, srcy;
+    Sint64 w, h;
 
     /* Make sure the surfaces aren't locked */
     if (!src || !dst) {