diff --git a/packages/cli/src/lookup.ts b/packages/cli/src/lookup.ts
index 7f8dcd7c7..2ebbb455d 100644
--- a/packages/cli/src/lookup.ts
+++ b/packages/cli/src/lookup.ts
@@ -482,7 +482,7 @@ export async function collectAsyncItems<T>(
   }
 }
 
-const signalTimers = new WeakMap<AbortSignal, number>();
+const signalTimers = new WeakMap<AbortSignal, ReturnType<typeof setTimeout>>();
 
 export function createTimeoutSignal(
   timeoutSeconds?: number,