diff --git a/theories/heap_lang/lib/queue.v b/theories/heap_lang/lib/queue.v
index 6e2f932927eec81ac2560dc2b94e07e115f4159b..f7660f33323df7119f5aaae9693c05442144ae4c 100644
--- a/theories/heap_lang/lib/queue.v
+++ b/theories/heap_lang/lib/queue.v
@@ -396,7 +396,7 @@ Definition remove_handle `{heapG Σ, queueG Σ}
 Section queue_bag_spec.
   Context `{!heapG Σ, !queueG Σ} (N : namespace) (Ψ : val → ironProp Σ).
 
-  Global Instance is_queue_bag_uniform N γ p Ψ : Uniform (is_queue_bag N γ p Ψ).
+  Global Instance is_queue_bag_uniform γ p Ψ : Uniform (is_queue_bag N γ p Ψ).
   Proof. apply _. Qed.
   Global Instance insert_handle_uniform γ q : Uniform (insert_handle γ q).
   Proof. apply _. Qed.