1 files changed, 3 insertions, 3 deletions
diff --git a/activemodel/lib/active_model/state_machine/event.rb b/activemodel/lib/active_model/state_machine/event.rb
index e8bc8ebdb7..8acde7fd47 100644
--- a/activemodel/lib/active_model/state_machine/event.rb
+++ b/activemodel/lib/active_model/state_machine/event.rb
@@ -2,15 +2,15 @@ module ActiveModel
   module StateMachine
     class Event
       attr_reader :name, :success
-      
+
       def initialize(machine, name, options = {}, &block)
         @machine, @name, @transitions = machine, name, []
         if machine
-          machine.klass.send(:define_method, "#{name.to_s}!") do |*args|
+          machine.klass.send(:define_method, "#{name}!") do |*args|
             machine.fire_event(name, self, true, *args)
           end
 
-          machine.klass.send(:define_method, "#{name.to_s}") do |*args|
+          machine.klass.send(:define_method, name.to_s) do |*args|
             machine.fire_event(name, self, false, *args)
           end
         end