diff --git a/commons_groups.module b/commons_groups.module
index 448d37efe5ceb3642a7e97ed8f6d15f3c565bfab..56bc58dafbc8ba0fe3ea38e5448f850b997dd312 100644
--- a/commons_groups.module
+++ b/commons_groups.module
@@ -441,12 +441,14 @@ function commons_groups_entityreference_default_value($entity_type, $entity, $fi
   }
 }
 
- function commons_groups_default_rules_configuration_alter(&$configs) {
+function commons_groups_default_rules_configuration_alter(&$configs) {
   // Disable default OG new content notifications.
   // The language doesn't correspond to Commons' open groups model and we use
   // commons_follow and commons_follow_notify for new content notifications.
-  $configs['rules_og_member_active']->active = FALSE;
- }
+  if (isset($configs['rules_og_member_active'])) {
+    $configs['rules_og_member_active']->active = FALSE;
+  }
+}
 
 /**
 * Implements hook_node_update().