diff --git a/demos/tri.c b/demos/tri.c
index d1b54f8..8276c58 100644
--- a/demos/tri.c
+++ b/demos/tri.c
@@ -842,7 +842,7 @@
     VkResult U_ASSERT_ONLY err;
     const VkImageLayout color_layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
     const VkAttachmentLoadOp color_load_op = VK_ATTACHMENT_LOAD_OP_CLEAR;
-    const VkAttachmentStoreOp color_store_op = VK_ATTACHMENT_STORE_OP_DONT_CARE;
+    const VkAttachmentStoreOp color_store_op = VK_ATTACHMENT_STORE_OP_STORE;
     const VkRenderPassCreateInfo rp_info = {
         .sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO,
         .pNext = NULL,