diff --git a/src/services/discover-whiskybase.ts b/src/services/discover-whiskybase.ts
index bf4f760..70a0e48 100644
--- a/src/services/discover-whiskybase.ts
+++ b/src/services/discover-whiskybase.ts
@@ -10,13 +10,14 @@ export async function discoverWhiskybaseId(bottle: {
     abv?: number;
     age?: number;
 }) {
-    const apiKey = process.env.GOOGLE_API_KEY;
+    // Both Gemini and Custom Search often use the same API key if created via AI Studio
+    const apiKey = process.env.GEMINI_API_KEY || process.env.GOOGLE_API_KEY;
     const cx = '37e905eb03fd14e0f'; // Provided by user
 
     if (!apiKey) {
         return {
             success: false,
-            error: 'GOOGLE_API_KEY ist nicht konfiguriert.'
+            error: 'GEMINI_API_KEY oder GOOGLE_API_KEY ist nicht konfiguriert.'
         };
     }