diff --git a/composer.json b/composer.json
index fceb79c1a6b2a1a9a0d07da631fad7b6b5b8519f..7f3cbf15e53c9e6143e6bef6fd034c881ccba8f7 100644
--- a/composer.json
+++ b/composer.json
@@ -39,7 +39,7 @@
     "prefer-stable": true,
     "config": {
         "preferred-install": "dist",
-        "autoloader-suffix": "Drupal8"
+        "autoloader-suffix": "Drupal9"
     },
     "extra": {
         "_readme": [