diff --git a/src/components/Timeline/Shared/HeaderConversation.tsx b/src/components/Timeline/Shared/HeaderConversation.tsx
index d09bce7c..db93625e 100644
--- a/src/components/Timeline/Shared/HeaderConversation.tsx
+++ b/src/components/Timeline/Shared/HeaderConversation.tsx
@@ -56,7 +56,7 @@ const HeaderConversation = ({ conversation }: Props) => {
{t('componentTimeline:shared.header.conversation.withAccounts')}
{conversation.accounts.map((account, index) => (
- {index !== 0 ? t('common:separator') : undefined}
+ {index !== 0 ? t('common:separator') : ' '}