diff --git a/lib/types/thread-types-enum.js b/lib/types/thread-types-enum.js
--- a/lib/types/thread-types-enum.js
+++ b/lib/types/thread-types-enum.js
@@ -161,6 +161,11 @@
   threadTypes.THICK_SIDEBAR,
 ]);
 
+export const personalThreadTypes: $ReadOnlyArray<number> = Object.freeze([
+  threadTypes.PERSONAL,
+  threadTypes.GENESIS_PERSONAL,
+]);
+
 export function threadTypeIsCommunityRoot(threadType: ThreadType): boolean {
   return communityThreadTypes.includes(threadType);
 }
@@ -174,3 +179,7 @@
 export function threadTypeIsSidebar(threadType: ThreadType): boolean {
   return sidebarThreadTypes.includes(threadType);
 }
+
+export function threadTypeIsPersonal(threadType: ThreadType): boolean {
+  return personalThreadTypes.includes(threadType);
+}
diff --git a/native/chat/settings/thread-settings.react.js b/native/chat/settings/thread-settings.react.js
--- a/native/chat/settings/thread-settings.react.js
+++ b/native/chat/settings/thread-settings.react.js
@@ -46,9 +46,9 @@
 import type { RelationshipButton } from 'lib/types/relationship-types.js';
 import { threadPermissions } from 'lib/types/thread-permission-types.js';
 import {
-  threadTypes,
   threadTypeIsSidebar,
   threadTypeIsThick,
+  threadTypeIsPersonal,
 } from 'lib/types/thread-types-enum.js';
 import type { UserInfos } from 'lib/types/user-types.js';
 import {
@@ -768,9 +768,7 @@
           });
         }
 
-        const threadIsPersonal =
-          threadInfo.type === threadTypes.GENESIS_PERSONAL;
-        if (threadIsPersonal && viewerID) {
+        if (threadInfo && threadTypeIsPersonal(threadInfo.type) && viewerID) {
           const otherMemberID = getSingleOtherUser(threadInfo, viewerID);
           if (otherMemberID) {
             const otherUserInfo = userInfos[otherMemberID];
diff --git a/web/modals/threads/settings/thread-settings-modal.react.js b/web/modals/threads/settings/thread-settings-modal.react.js
--- a/web/modals/threads/settings/thread-settings-modal.react.js
+++ b/web/modals/threads/settings/thread-settings-modal.react.js
@@ -19,7 +19,10 @@
 import type { ThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { RelationshipButton } from 'lib/types/relationship-types.js';
 import { threadPermissions } from 'lib/types/thread-permission-types.js';
-import { threadTypes } from 'lib/types/thread-types-enum.js';
+import {
+  threadTypeIsPersonal,
+  threadTypes,
+} from 'lib/types/thread-types-enum.js';
 import { type ThreadChanges } from 'lib/types/thread-types.js';
 import { useResolvedThreadInfo } from 'lib/utils/entity-helpers.js';
 
@@ -91,11 +94,15 @@
     const otherUserInfo = otherMemberID ? userInfos[otherMemberID] : null;
 
     const availableRelationshipActions = React.useMemo(() => {
-      if (!otherUserInfo) {
+      if (
+        !otherUserInfo ||
+        !threadInfo ||
+        !threadTypeIsPersonal(threadInfo.type)
+      ) {
         return ([]: RelationshipButton[]);
       }
       return getAvailableRelationshipButtons(otherUserInfo);
-    }, [otherUserInfo]);
+    }, [otherUserInfo, threadInfo]);
 
     const canEditThreadName = useThreadHasPermission(
       threadInfo,