diff --git a/lib/shared/thread-utils.js b/lib/shared/thread-utils.js
--- a/lib/shared/thread-utils.js
+++ b/lib/shared/thread-utils.js
@@ -1409,16 +1409,16 @@
 }
 
 function getCommunity(
-  parentThreadInfo:
+  threadInfo:
     | ?ServerThreadInfo
     | LegacyRawThreadInfo
     | RawThreadInfo
     | ThreadInfo,
 ): ?string {
-  if (!parentThreadInfo) {
+  if (!threadInfo) {
     return null;
   }
-  const { id, community, type } = parentThreadInfo;
+  const { id, community, type } = threadInfo;
   if (community !== null && community !== undefined) {
     return community;
   }