diff --git a/crates/title_bar/src/platform_title_bar.rs b/crates/title_bar/src/platform_title_bar.rs
index c816f0930ca48bdb7f66233a95dfd7b08c1adf09..fd03e764629454411c9726ef7dcf055d54582d7e 100644
--- a/crates/title_bar/src/platform_title_bar.rs
+++ b/crates/title_bar/src/platform_title_bar.rs
@@ -97,6 +97,7 @@ impl Render for PlatformTitleBar {
                     })
                     // this border is to avoid a transparent gap in the rounded corners
                     .mt(px(-1.))
+                    .mb(px(-1.))
                     .border(px(1.))
                     .border_color(titlebar_color),
             })