diff --git a/app/api/missions/test-n8n-config/route.ts b/app/api/missions/test-n8n-config/route.ts
index 5896e2d9..2aab3f69 100644
--- a/app/api/missions/test-n8n-config/route.ts
+++ b/app/api/missions/test-n8n-config/route.ts
@@ -30,7 +30,37 @@ export async function GET(request: Request) {
     const n8nDeleteWebhookUrl = process.env.N8N_DELETE_WEBHOOK_URL;
 
     // Construire la réponse
-    const config = {
+    const config: {
+      environment: {
+        hasN8NApiKey: boolean;
+        n8nApiKeyLength: number;
+        n8nApiKeyPrefix: string;
+        n8nWebhookUrl: string;
+        n8nRollbackWebhookUrl: string;
+        n8nDeleteWebhookUrl: string;
+        missionApiUrl: string;
+      };
+      urls: {
+        webhookUrl: string;
+        callbackUrl: string;
+        rollbackUrl: string;
+        deleteUrl: string;
+        webhookTest?: {
+          status?: number;
+          statusText?: string;
+          reachable?: boolean;
+          note?: string;
+          error?: string;
+        };
+      };
+      status: {
+        configured: boolean;
+        missingApiKey: boolean;
+        missingApiUrl: boolean;
+        ready: boolean;
+      };
+      recommendations: string[];
+    } = {
       // Variables d'environnement
       environment: {
         hasN8NApiKey: !!n8nApiKey,
@@ -59,7 +89,7 @@ export async function GET(request: Request) {
       },
       
       // Recommandations
-      recommendations: [] as string[],
+      recommendations: [],
     };
 
     // Ajouter des recommandations basées sur la configuration