diff --git a/lib/database_cleaner/generic/base.rb b/lib/database_cleaner/generic/base.rb
index b9c0cc3..80d036d 100644
--- a/lib/database_cleaner/generic/base.rb
+++ b/lib/database_cleaner/generic/base.rb
@@ -1,27 +1,29 @@
 module ::DatabaseCleaner
-   module Generic
-     module Base
+  module Generic
+    module Base
 
-       def self.included(base)
-         base.extend(ClassMethods)
-       end
+      def self.included(base)
+        base.extend(ClassMethods)
+      end
 
-       def db
-         :default
-       end
+      def db
+        :default
+      end
 
-       def cleaning(&block)
-            start
-            yield
-         ensure
-            clean
-       end
+      def cleaning(&block)
+        begin
+          start
+          yield
+        ensure
+          clean
+        end
+      end
 
-       module ClassMethods
-         def available_strategies
-           %W[]
-         end
-       end
-     end
-   end
+      module ClassMethods
+        def available_strategies
+          %W[]
+        end
+      end
+    end
+  end
 end