diff --git a/packages/mdc-top-app-bar/_variables.scss b/packages/mdc-top-app-bar/_variables.scss
index 6ad0faf3255..48b52f5b3f9 100644
--- a/packages/mdc-top-app-bar/_variables.scss
+++ b/packages/mdc-top-app-bar/_variables.scss
@@ -30,7 +30,7 @@ $mdc-top-app-bar-mobile-row-height: 56px;
 $mdc-top-app-bar-mobile-section-padding: 4px;
 
 // Short top app bar
-$mdc-top-app-bar-short-collapsed-border-radius: 10px;
+$mdc-top-app-bar-short-collapsed-border-radius: 4px;
 $mdc-top-app-bar-short-collapsed-width: 56px;
 $mdc-top-app-bar-short-collapsed-right-icon-padding: 12px;