diff --git a/README.md b/README.md
index e89e55b6..fb63b4fe 100644
--- a/README.md
+++ b/README.md
@@ -199,6 +199,7 @@ skills.
  - Mário Freitas
  - GeO4d
  - Marcus Geelnard
+ - Charles Giessen
  - Stephen Gowen
  - Kovid Goyal
  - Eloi Marín Gratacós
diff --git a/tests/triangle-vulkan.c b/tests/triangle-vulkan.c
index 7cdb8f78..8600ced7 100644
--- a/tests/triangle-vulkan.c
+++ b/tests/triangle-vulkan.c
@@ -2118,6 +2118,7 @@ static void demo_cleanup(struct demo *demo) {
 
     if (demo->setup_cmd) {
         vkFreeCommandBuffers(demo->device, demo->cmd_pool, 1, &demo->setup_cmd);
+        demo->setup_cmd = VK_NULL_HANDLE;
     }
     vkFreeCommandBuffers(demo->device, demo->cmd_pool, 1, &demo->draw_cmd);
     vkDestroyCommandPool(demo->device, demo->cmd_pool, NULL);