diff --git a/src/core/chan.ml b/src/core/chan.ml
index 0debda30..be4ac3b9 100644
--- a/src/core/chan.ml
+++ b/src/core/chan.ml
@@ -1,5 +1,3 @@
-module A = Atomic_
-
 exception Closed
 
 type 'a t = {