diff --git a/elasticms-admin/src/DependencyInjection/EnvVarProcessor/UrlEncodeEnvVarProcessor.php b/elasticms-admin/src/DependencyInjection/EnvVarProcessor/UrlEncodeEnvVarProcessor.php
index f68a0c2d3..e8f9da692 100644
--- a/elasticms-admin/src/DependencyInjection/EnvVarProcessor/UrlEncodeEnvVarProcessor.php
+++ b/elasticms-admin/src/DependencyInjection/EnvVarProcessor/UrlEncodeEnvVarProcessor.php
@@ -8,10 +8,7 @@
 
 class UrlEncodeEnvVarProcessor implements EnvVarProcessorInterface
 {
-    /**
-     * @return mixed
-     */
-    public function getEnv(string $prefix, string $name, \Closure $getEnv)
+    public function getEnv(string $prefix, string $name, \Closure $getEnv): string
     {
         $env = $getEnv($name);