diff --git a/webapp/src/types/AcChargerConfig.ts b/webapp/src/types/AcChargerConfig.ts
index 29171d12e..dfb35a770 100644
--- a/webapp/src/types/AcChargerConfig.ts
+++ b/webapp/src/types/AcChargerConfig.ts
@@ -19,7 +19,7 @@ export interface AcChargerShellyConfig {
     auto_power_batterysoc_limits_enabled: boolean;
     emergency_charge_enabled: boolean;
     stop_batterysoc_threshold: number;
-    url: String;
+    url: string;
     power_on_threshold: number;
     power_off_threshold: number;
 }