diff --git a/block_class.module b/block_class.module
index 4c206b9..934e3c6 100644
--- a/block_class.module
+++ b/block_class.module
@@ -91,6 +91,9 @@ function block_class_form_submit($form, &$form_state) {
         ->condition('module', $form_state['values']['module'])
         ->condition('delta', $form_state['values']['delta'])
         ->execute();
+      if(module_exists('context')){
+        cache_clear_all('context', 'cache', TRUE);
+      }
     }
   }
 }