diff --git a/op/op.ExtensionMgr.php b/op/op.ExtensionMgr.php
index 19a48dc15..9df8b72b6 100644
--- a/op/op.ExtensionMgr.php
+++ b/op/op.ExtensionMgr.php
@@ -160,7 +160,7 @@ elseif ($action == "toggle") { /* {{{ */
 				if($ret === true)
 					echo json_encode(array('success'=>true, 'msg'=>getMLText('extension_migration_success')));
 				else
-					echo json_encode(array('success'=>true, 'msg'=>getMLText('extension_migration_error')));
+					echo json_encode(array('success'=>false, 'msg'=>getMLText('extension_migration_error')));
 			} else {
 				echo json_encode(array('success'=>true, 'msg'=>getMLText('extension_is_on_now')));
 			}