diff --git a/src/redux/lab/sagas.ts b/src/redux/lab/sagas.ts
index 6668556a..b507d02c 100644
--- a/src/redux/lab/sagas.ts
+++ b/src/redux/lab/sagas.ts
@@ -67,7 +67,7 @@ function* getMore() {
     if (!last) {
       return;
     }
-    const after = last.node.created_at;
+    const after = last.node.commented_at || last.node.created_at;
     const { nodes, count }: Unwrap<typeof getLabNodes> = yield call(getLabNodes, { after });
     const newNodes = [...list.nodes, ...nodes];