diff --git a/app/soapbox/features/chats/components/chat_box.js b/app/soapbox/features/chats/components/chat_box.js
index f9c169d45..fac4ae894 100644
--- a/app/soapbox/features/chats/components/chat_box.js
+++ b/app/soapbox/features/chats/components/chat_box.js
@@ -40,7 +40,7 @@ class ChatBox extends ImmutablePureComponent {
     intl: PropTypes.object.isRequired,
     chatId: PropTypes.string.isRequired,
     chatMessageIds: ImmutablePropTypes.orderedSet,
-    chat: ImmutablePropTypes.map,
+    chat: ImmutablePropTypes.record,
     onSetInputRef: PropTypes.func,
     me: PropTypes.node,
   }
diff --git a/app/soapbox/features/chats/components/chat_window.js b/app/soapbox/features/chats/components/chat_window.js
index 444658675..4d811fe15 100644
--- a/app/soapbox/features/chats/components/chat_window.js
+++ b/app/soapbox/features/chats/components/chat_window.js
@@ -46,7 +46,7 @@ class ChatWindow extends ImmutablePureComponent {
     chatId: PropTypes.string.isRequired,
     windowState: PropTypes.string.isRequired,
     idx: PropTypes.number,
-    chat: ImmutablePropTypes.map,
+    chat: ImmutablePropTypes.record,
     me: PropTypes.node,
     displayFqn: PropTypes.bool,
   }