diff --git a/application-loadbalancer.cfndsl.rb b/application-loadbalancer.cfndsl.rb
index 163331f..4bfdcfb 100644
--- a/application-loadbalancer.cfndsl.rb
+++ b/application-loadbalancer.cfndsl.rb
@@ -151,7 +151,7 @@
     end
   end
 
-  Condition(:AssociateWebACL, FnNot(FnEquals(:WebACLArn, '')))
+  Condition(:AssociateWebACL, FnNot(FnEquals(Ref(:WebACLArn), '')))
 
   WAFv2_WebACLAssociation(:WebACLAssociation) {
     Condition :AssociateWebACL