diff --git a/src/video/SDL_blit.h b/src/video/SDL_blit.h
index 759d005b8..09030265d 100644
--- a/src/video/SDL_blit.h
+++ b/src/video/SDL_blit.h
@@ -79,7 +79,7 @@ typedef struct
     Uint32 src_format;
     Uint32 dst_format;
     int flags;
-    int cpu;
+    unsigned int cpu;
     SDL_BlitFunc func;
 } SDL_BlitFuncEntry;