diff --git a/activesupport/test/core_ext/module_test.rb b/activesupport/test/core_ext/module_test.rb
index cba60ef0130838c3362f81c8e9630f9d8e0b4e6e..68bd5233bf3344ba4d92dd331d004dd3cfe3e715 100644
--- a/activesupport/test/core_ext/module_test.rb
+++ b/activesupport/test/core_ext/module_test.rb
@@ -399,7 +399,7 @@ def initialize(place)
         @place = place
       end
 
-      private *delegate(:street, :city, to: :@place)
+      private(*delegate(:street, :city, to: :@place))
     end
 
     place = location.new(Somewhere.new("Such street", "Sad city"))
@@ -417,7 +417,7 @@ def initialize(place)
         @place = place
       end
 
-      private *delegate(:street, :city, to: :@place, prefix: :the)
+      private(*delegate(:street, :city, to: :@place, prefix: :the))
     end
 
     place = location.new(Somewhere.new("Such street", "Sad city"))