diff --git a/gui/black/assets/css/theme.css b/gui/black/assets/css/theme.css
index 2a54462e6..f6cdb51f7 100644
--- a/gui/black/assets/css/theme.css
+++ b/gui/black/assets/css/theme.css
@@ -42,7 +42,7 @@ a:hover,a:focus,a.focus{
 .nav-tabs > li > a:hover,
 .nav-tabs > li > a:focus {
   background-color: #222222 !important;
-  border: none !important;
+  border-color: transparent !important;
 }
 
 .navbar-text, .dropdown>a, .dropdown-menu>li>a, .hidden-xs>a, .navbar-link {
diff --git a/gui/dark/assets/css/theme.css b/gui/dark/assets/css/theme.css
index 4aa4a05f7..d2aafed96 100644
--- a/gui/dark/assets/css/theme.css
+++ b/gui/dark/assets/css/theme.css
@@ -45,7 +45,7 @@ a:hover,a:focus,a.focus{
 .nav-tabs > li > a:hover,
 .nav-tabs > li > a:focus {
   background-color: #424242 !important;
-  border: none !important;
+  border-color: transparent !important;
 }