diff --git a/server/src/services/auth.service.ts b/server/src/services/auth.service.ts
index b0094ae9edba9a..09776a0f422910 100644
--- a/server/src/services/auth.service.ts
+++ b/server/src/services/auth.service.ts
@@ -226,7 +226,7 @@ export class AuthService extends BaseService {
       const storageQuota = this.getClaim(profile, {
         key: storageQuotaClaim,
         default: defaultStorageQuota,
-        isValid: (value: unknown) => isNumber(value) && value >= 0,
+        isValid: (value: unknown) => isNumber(value) && Number(value) >= 0,
       });
 
       const userName = profile.name ?? `${profile.given_name || ''} ${profile.family_name || ''}`;