diff --git a/src/gallium/drivers/zink/zink_context.c b/src/gallium/drivers/zink/zink_context.c
index 925f6dc217d..fb9a6f545ea 100644
--- a/src/gallium/drivers/zink/zink_context.c
+++ b/src/gallium/drivers/zink/zink_context.c
@@ -2691,8 +2691,10 @@ begin_rendering(struct zink_context *ctx)
       VkImageView iv = zink_prep_fb_attachment(ctx, surf, ctx->fb_state.nr_cbufs);
       ctx->dynamic_fb.attachments[PIPE_MAX_COLOR_BUFS].imageView = iv;
       ctx->dynamic_fb.attachments[PIPE_MAX_COLOR_BUFS].imageLayout = zink_resource(surf->base.texture)->layout;
+      assert(ctx->dynamic_fb.attachments[PIPE_MAX_COLOR_BUFS].imageLayout != VK_IMAGE_LAYOUT_UNDEFINED);
       ctx->dynamic_fb.attachments[PIPE_MAX_COLOR_BUFS+1].imageView = iv;
       ctx->dynamic_fb.attachments[PIPE_MAX_COLOR_BUFS+1].imageLayout = zink_resource(surf->base.texture)->layout;
+      assert(ctx->dynamic_fb.attachments[PIPE_MAX_COLOR_BUFS+1].imageLayout != VK_IMAGE_LAYOUT_UNDEFINED);
    }
    assert(ctx->fb_state.width >= ctx->dynamic_fb.info.renderArea.extent.width);
    assert(ctx->fb_state.height >= ctx->dynamic_fb.info.renderArea.extent.height);