diff --git a/lib/Service/ExAppService.php b/lib/Service/ExAppService.php
index cca600b2..cd8d90db 100644
--- a/lib/Service/ExAppService.php
+++ b/lib/Service/ExAppService.php
@@ -323,9 +323,9 @@ public function getAppInfo(string $appId, ?string $infoXml, ?string $jsonInfo, ?
 						}
 					}
 				}
-				$envVars = array_values(array_filter($envVars, function ($envVar) {
+				$envVars = array_filter($envVars, function ($envVar) {
 					return $envVar['value'] !== '';
-				}));
+				});
 				$appInfo['external-app']['environment-variables'] = $envVars;
 			}
 			if (isset($deployOptions['mounts'])) {