diff --git a/src/utils.rs b/src/utils.rs
index ef02d66..db57319 100644
--- a/src/utils.rs
+++ b/src/utils.rs
@@ -21,7 +21,7 @@ macro_rules! stacked_buttons_markup {
         InlineKeyboardMarkup {
             inline_keyboard: vec![
                 $(
-                    vec![$button]
+                    vec![$button],
                 )*
             ],
         }