diff --git a/packages/reservation-platform/src/utils/env.ts b/packages/reservation-platform/src/utils/env.ts
index 99d6d6f..2e2de64 100644
--- a/packages/reservation-platform/src/utils/env.ts
+++ b/packages/reservation-platform/src/utils/env.ts
@@ -5,7 +5,7 @@ import { z } from "zod";
  */
 export const env = {
 	OAUTH: {
-		CLIENT_ID: z.string().parse(process.env.OAUTH_CLIENT_ID),
-		CLIENT_SECRET: z.string().parse(process.env.OAUTH_CLIENT_SECRET),
+		CLIENT_ID: z.string().parse(process.env.OAUTH_CLIENT_ID ?? ""),
+		CLIENT_SECRET: z.string().parse(process.env.OAUTH_CLIENT_SECRET ?? ""),
 	},
 };