diff --git a/src/lib/api-config.ts b/src/lib/api-config.ts
index 54e3362..68c7eef 100644
--- a/src/lib/api-config.ts
+++ b/src/lib/api-config.ts
@@ -67,7 +67,7 @@ function normalizeProviderBaseUrl(providerId: string, rawBaseUrl?: string): stri
 
   const baseUrl = readTrimmedString(rawBaseUrl)
   if (!baseUrl) return undefined
-  if (providerKey !== 'openai-compatible') return baseUrl
+  if (providerKey !== 'openai-compatible' && providerKey !== 'grok2') return baseUrl
 
   try {
     const parsed = new URL(baseUrl)