diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5923a0ea..308b46a5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # CHANGELOG
 
+## 3.0.22 (not yet released)
+
+ * fixed [issue 88](https://github.com/aasm/aasm/issues/88): wrong number of arguments for transaction method
+
 ## 3.0.21
 
  * support nested ActiveRecord transactions ([@ozeias](https://github.com/ozeias))
diff --git a/lib/aasm/persistence/active_record_persistence.rb b/lib/aasm/persistence/active_record_persistence.rb
index 0196272b..09ae4fd2 100644
--- a/lib/aasm/persistence/active_record_persistence.rb
+++ b/lib/aasm/persistence/active_record_persistence.rb
@@ -132,7 +132,7 @@ def aasm_ensure_initial_state
         end
 
         def aasm_fire_event(name, options, *args)
-          transaction(:requires_new => true) do
+          self.class.transaction(:requires_new => true) do
             super
           end
         end