diff --git a/ts/models/conversations.ts b/ts/models/conversations.ts
index 262e6b890b..de64d04972 100644
--- a/ts/models/conversations.ts
+++ b/ts/models/conversations.ts
@@ -4601,7 +4601,7 @@ export class ConversationModel extends window.Backbone
     }
   }
 
-  async setProfileAvatar(avatarPath: string): Promise<void> {
+  async setProfileAvatar(avatarPath: undefined | null | string): Promise<void> {
     if (!avatarPath) {
       return;
     }