diff --git a/src/vulkan/util/vk_cmd_queue_gen.py b/src/vulkan/util/vk_cmd_queue_gen.py
index 22d6a8fa416..5f1e409a2b9 100644
--- a/src/vulkan/util/vk_cmd_queue_gen.py
+++ b/src/vulkan/util/vk_cmd_queue_gen.py
@@ -59,7 +59,7 @@ extern "C" {
 #endif
 
 struct vk_cmd_queue {
-   VkAllocationCallbacks *alloc;
+   const VkAllocationCallbacks *alloc;
    struct list_head cmds;
 };