diff --git a/extensions/flags/composer.json b/extensions/flags/composer.json
index 0b0364a8f..a9e50fc72 100644
--- a/extensions/flags/composer.json
+++ b/extensions/flags/composer.json
@@ -23,6 +23,9 @@
         }
     },
     "extra": {
+        "branch-alias": {
+            "dev-master": "0.1.x-dev"
+        },
         "flarum-extension": {
             "title": "Flags",
             "icon": {