diff --git a/lib/ns/client.c b/lib/ns/client.c
index da3ca14e0b..9ac75ff25d 100644
--- a/lib/ns/client.c
+++ b/lib/ns/client.c
@@ -2510,7 +2510,7 @@ cleanup_reclock:
 	isc_mutex_destroy(&manager->reclock);
 	isc_mutex_destroy(&manager->lock);
 
-	isc_mem_put(manager->mctx, manager, sizeof(*manager));
+	isc_mem_put(mctx, manager, sizeof(*manager));
 
 	return (result);
 }