diff --git a/scss/_popover.scss b/scss/_popover.scss
index a55555e2e9..da00f700fd 100644
--- a/scss/_popover.scss
+++ b/scss/_popover.scss
@@ -144,7 +144,7 @@
   @include font-size($font-size-base);
   color: $popover-header-color;
   background-color: $popover-header-bg;
-  border-bottom: $popover-border-width solid shade-color($popover-header-bg, 10%);
+  border-bottom: $popover-border-width solid $popover-border-color;
   @include border-top-radius($popover-inner-border-radius);
 
   &:empty {