diff --git a/composer.json b/composer.json
index 78f4e95..6b472d0 100644
--- a/composer.json
+++ b/composer.json
@@ -34,6 +34,11 @@
   "suggest": {
     "friendsoftypo3/headless": "^1.0"
   },
+  "extra": {
+    "typo3/cms": {
+       "extension-key": "headless_powermail"
+     }
+  }
   "autoload": {
     "psr-4": {
       "FriendsOfTYPO3\\HeadlessPowermail\\": "Classes"