diff --git a/test/tools/unified-spec-runner/schema.ts b/test/tools/unified-spec-runner/schema.ts
index ce722b2e70..81b8172463 100644
--- a/test/tools/unified-spec-runner/schema.ts
+++ b/test/tools/unified-spec-runner/schema.ts
@@ -386,7 +386,6 @@ export interface StoreEventsAsEntity {
 }
 export interface ExpectedError {
   isError?: true;
-  isTimeoutError?: boolean;
   isClientError?: boolean;
   errorContains?: string;
   errorCode?: number;