diff --git a/internal/tui/components/chat/messages/renderer.go b/internal/tui/components/chat/messages/renderer.go
index 88f59d7ebc81cecea0bb8ef314de73d720ad2938..87eb2c8476655fe7d11fc8c787e73b32d4584de4 100644
--- a/internal/tui/components/chat/messages/renderer.go
+++ b/internal/tui/components/chat/messages/renderer.go
@@ -650,7 +650,7 @@ func joinHeaderBody(header, body string) string {
 		return header
 	}
 	body = t.S().Base.PaddingLeft(2).Render(body)
-	return lipgloss.JoinVertical(lipgloss.Left, header, "", body, "")
+	return lipgloss.JoinVertical(lipgloss.Left, header, "", body)
 }
 
 func renderPlainContent(v *toolCallCmp, content string) string {