diff --git a/src/virtio/vulkan/vn_instance.c b/src/virtio/vulkan/vn_instance.c
index 1315b5309f9..0a8a29984bf 100644
--- a/src/virtio/vulkan/vn_instance.c
+++ b/src/virtio/vulkan/vn_instance.c
@@ -409,12 +409,14 @@ vn_DestroyInstance(VkInstance _instance,
 {
    VN_TRACE_FUNC();
    struct vn_instance *instance = vn_instance_from_handle(_instance);
-   const VkAllocationCallbacks *alloc =
-      pAllocator ? pAllocator : &instance->base.vk.alloc;
+   const VkAllocationCallbacks *alloc = pAllocator;
 
    if (!instance)
       return;
 
+   if (!alloc)
+      alloc = &instance->base.vk.alloc;
+
    if (instance->physical_device.initialized) {
       for (uint32_t i = 0; i < instance->physical_device.device_count; i++)
          vn_physical_device_fini(&instance->physical_device.devices[i]);