diff --git a/extensions/memory-core/src/memory/manager-embedding-ops.ts b/extensions/memory-core/src/memory/manager-embedding-ops.ts
index 150e328b455..d20303bc0cd 100644
--- a/extensions/memory-core/src/memory/manager-embedding-ops.ts
+++ b/extensions/memory-core/src/memory/manager-embedding-ops.ts
@@ -143,7 +143,6 @@ export async function runEmbeddingOperationWithTimeout<T>(params: {
       reject(error);
       controller.abort(error);
     }, timeoutMs);
-    timer.unref?.();
   });
   try {
     const operation = params.run(controller.signal);