diff --git a/src/Service/PackageSynchronizer/ComposerPackageSynchronizer.php b/src/Service/PackageSynchronizer/ComposerPackageSynchronizer.php
index 62ba62a3..e41e4b03 100644
--- a/src/Service/PackageSynchronizer/ComposerPackageSynchronizer.php
+++ b/src/Service/PackageSynchronizer/ComposerPackageSynchronizer.php
@@ -140,6 +140,13 @@ private function createConfig(Package $package, IOInterface $io): Config
                 ],
             ],
         ]);
+        if ($package->type() === 'gitlab-oauth') {
+            $config->merge([
+                'config' => [
+                    'gitlab-domains' => [(string)parse_url($this->gitlabUrl, PHP_URL_HOST)],
+                ],
+            ]);
+        }
 
         return $config;
     }