diff --git a/app/soapbox/normalizers/chat_message.ts b/app/soapbox/normalizers/chat_message.ts
index bdf2653a9..393f950af 100644
--- a/app/soapbox/normalizers/chat_message.ts
+++ b/app/soapbox/normalizers/chat_message.ts
@@ -15,13 +15,13 @@ export const ChatMessageRecord = ImmutableRecord({
   card: null as Card | null,
   chat_id: '',
   content: '',
-  created_at: new Date(),
+  created_at: '',
   emojis: ImmutableList<Emoji>(),
   id: '',
   unread: false,
 
   deleting: false,
-  pending: false,
+  pending: false as boolean | undefined,
 });
 
 const normalizeMedia = (status: ImmutableMap<string, any>) => {
diff --git a/app/soapbox/queries/chats.ts b/app/soapbox/queries/chats.ts
index b9e6a36e3..ec2c2542a 100644
--- a/app/soapbox/queries/chats.ts
+++ b/app/soapbox/queries/chats.ts
@@ -9,6 +9,7 @@ import compareId from 'soapbox/compare_id';
 import { useChatContext } from 'soapbox/contexts/chat-context';
 import { useStatContext } from 'soapbox/contexts/stat-context';
 import { useApi, useAppDispatch, useAppSelector, useFeatures } from 'soapbox/hooks';
+import { normalizeChatMessage } from 'soapbox/normalizers';
 import { flattenPages, PaginatedResult, updatePageItem } from 'soapbox/utils/queries';
 
 import { queryClient } from './client';
@@ -91,7 +92,7 @@ const useChatMessages = (chat: IChat) => {
 
     const link = getNextLink(response);
     const hasMore = !!link;
-    const result = data.sort(reverseOrder);
+    const result = data.sort(reverseOrder).map(normalizeChatMessage);
 
     return {
       result,