diff --git a/src/modules/llms/server/openai/openai.router.ts b/src/modules/llms/server/openai/openai.router.ts
index 74eb1a846..729823d8c 100644
--- a/src/modules/llms/server/openai/openai.router.ts
+++ b/src/modules/llms/server/openai/openai.router.ts
@@ -257,7 +257,7 @@ export const llmOpenAIRouter = createTRPCRouter({
           models = openAIModels
             .sort(openRouterModelFamilySortFn)
             .map(openRouterModelToModelDescription)
-            .filter(desc => !!desc);
+            .filter(desc => !!desc) as ModelDescriptionSchema[];
           break;
 
       }