diff --git a/src/top-navigation/styles.scss b/src/top-navigation/styles.scss
index b79520aabf..99740f00f5 100644
--- a/src/top-navigation/styles.scss
+++ b/src/top-navigation/styles.scss
@@ -10,7 +10,6 @@
 .top-navigation {
   @include styles.styles-reset;
   background: awsui.$color-background-container-content;
-  border-block-end: awsui.$border-divider-section-width solid awsui.$color-border-divider-default;
 
   > .padding-box {
     display: flex;