diff --git a/src/vulkan/image.c b/src/vulkan/image.c
index 43556409ad1..42bb28f9823 100644
--- a/src/vulkan/image.c
+++ b/src/vulkan/image.c
@@ -79,6 +79,7 @@ VkResult anv_image_create(
       image->tile_mode = YMAJOR;
       break;
    default:
+      assert(!"bad VKImageTiling");
       break;
    }