diff --git a/app/models/collection/broadcastable.rb b/app/models/collection/broadcastable.rb
index 82d548f33..f3f2f398e 100644
--- a/app/models/collection/broadcastable.rb
+++ b/app/models/collection/broadcastable.rb
@@ -3,6 +3,6 @@ module Collection::Broadcastable
 
   included do
     broadcasts_refreshes
-    broadcasts_refreshes_to ->(collection) { :collections }
+    broadcasts_refreshes_to ->(_) { :collections }
   end
 end