diff --git a/crates/collab_ui/src/notifications/incoming_call_notification.rs b/crates/collab_ui/src/notifications/incoming_call_notification.rs
index f66194c52a..32a8f19e30 100644
--- a/crates/collab_ui/src/notifications/incoming_call_notification.rs
+++ b/crates/collab_ui/src/notifications/incoming_call_notification.rs
@@ -125,7 +125,7 @@ impl Render for IncomingCallNotification {
 
         cx.set_rem_size(ui_font_size);
 
-        div().size_full().font(ui_font).child(
+        h_flex().flex_grow().size_full().font(ui_font).child(
             CollabNotification::new(
                 self.state.call.calling_user.avatar_uri.clone(),
                 Button::new("accept", "Accept").on_click({
diff --git a/crates/collab_ui/src/notifications/project_shared_notification.rs b/crates/collab_ui/src/notifications/project_shared_notification.rs
index b8ceefcd76..af138f086b 100644
--- a/crates/collab_ui/src/notifications/project_shared_notification.rs
+++ b/crates/collab_ui/src/notifications/project_shared_notification.rs
@@ -129,7 +129,7 @@ impl Render for ProjectSharedNotification {
 
         cx.set_rem_size(ui_font_size);
 
-        div().size_full().font(ui_font).child(
+        h_flex().flex_grow().size_full().font(ui_font).child(
             CollabNotification::new(
                 self.owner.avatar_uri.clone(),
                 Button::new("open", "Open").on_click(cx.listener(move |this, _event, cx| {