diff --git a/lib/shared/ancestor-threads.js b/lib/shared/ancestor-threads.js
index dcc1ef101..f84c8e523 100644
--- a/lib/shared/ancestor-threads.js
+++ b/lib/shared/ancestor-threads.js
@@ -1,24 +1,29 @@
 // @flow
 
 import genesis from '../facts/genesis';
 import {
   threadInfoSelector,
   ancestorThreadInfos,
 } from '../selectors/thread-selectors';
 import { threadIsPending } from '../shared/thread-utils';
 import { type ThreadInfo } from '../types/thread-types';
 import { useSelector } from '../utils/redux-utils';
 
 function useAncestorThreads(
   threadInfo: ThreadInfo,
 ): $ReadOnlyArray<ThreadInfo> {
   return useSelector(state => {
     if (!threadIsPending(threadInfo.id)) {
-      return ancestorThreadInfos(threadInfo.id)(state).slice(0, -1);
+      const ancestorThreads = ancestorThreadInfos(threadInfo.id)(state);
+      if (ancestorThreads.length > 1) {
+        return ancestorThreads.slice(0, -1);
+      }
+
+      return ancestorThreads;
     }
     const genesisThreadInfo = threadInfoSelector(state)[genesis.id];
     return genesisThreadInfo ? [genesisThreadInfo] : [];
   });
 }
 
 export { useAncestorThreads };