diff --git a/qt/ts/scss/toolbar.scss b/qt/ts/scss/toolbar.scss
index 46d10f9da..8ebcff3ea 100644
--- a/qt/ts/scss/toolbar.scss
+++ b/qt/ts/scss/toolbar.scss
@@ -45,4 +45,8 @@ body {
     #header {
         border-bottom-color: vars.$night-faint-border;
     }
-}
\ No newline at end of file
+}
+
+.isMac.nightMode #header {
+    border-bottom-color: vars.$night-frame-bg;
+}