diff --git a/src/common/vars.ts b/src/common/vars.ts
index 59ccefe0de..d166e68291 100644
--- a/src/common/vars.ts
+++ b/src/common/vars.ts
@@ -136,4 +136,4 @@ export const docsUrl = "https://docs.k8slens.dev/main/" as string;
 
 export const sentryDsn = packageInfo.config?.sentryDsn ?? "";
 
-export const webpackDevServerPort: number = +process.env.WEBPACK_DEV_SERVER_PORT || 9191;
+export const webpackDevServerPort: number = Number(process.env.WEBPACK_DEV_SERVER_PORT) || 9191;