1 files changed, 5 insertions, 0 deletions
diff --git a/actionpack/lib/action_controller/session/active_record_store.rb b/actionpack/lib/action_controller/session/active_record_store.rb
index 90d9f3fbe1..36896d36d8 100644
--- a/actionpack/lib/action_controller/session/active_record_store.rb
+++ b/actionpack/lib/action_controller/session/active_record_store.rb
@@ -46,6 +46,11 @@ class CGI
 
         class << self
 
+          # Don't try to reload ARStore::Session in dev mode.
+          def reloadable? #:nodoc:
+            false
+          end
+          
           def data_column_size_limit
             connection.columns(table_name).find {|column| column.name == 'data'}.limit
           end