diff --git a/app/models/custom_button.rb b/app/models/custom_button.rb
index ad87c8b2191e..e8bf0fa54bb9 100644
--- a/app/models/custom_button.rb
+++ b/app/models/custom_button.rb
@@ -96,7 +96,7 @@ def invoke(target, source = nil)
   end
 
   def publish_event(source, target, args)
-    target.kind_of?(Array) ? target.each { |t| create_event(source, t, args) } : create_event(source, target, args)
+    target.size > 1 ? target.each { |t| create_event(source, t, args) } : create_event(source, target, args)
   end
 
   def create_event(source, target, args)