diff --git a/articles/libraries/lock/v11/api.md b/articles/libraries/lock/v11/api.md
index d26f45bdde..9dbf23c18c 100644
--- a/articles/libraries/lock/v11/api.md
+++ b/articles/libraries/lock/v11/api.md
@@ -143,7 +143,7 @@ lock.on('authorization_error', function(error) {
   lock.show({
     flashMessage: {
       type: 'error',
-      text: error.error_description
+      text: error.errorDescription
     }
   });
 });