diff --git a/src/video/SDL_surface.c b/src/video/SDL_surface.c
index 7788d67d7..e989a1aab 100644
--- a/src/video/SDL_surface.c
+++ b/src/video/SDL_surface.c
@@ -947,6 +947,7 @@ int SDL_ConvertPixels(int width, int height,
             case SDL_PIXELFORMAT_UYVY:
             case SDL_PIXELFORMAT_YVYU:
                 bpp = 2;
+                break;
             default:
                 SDL_SetError("Unknown FOURCC pixel format");
                 return -1;