diff --git a/src/Umbraco.Web.UI.Client/lib/bootstrap/less/navbar.less b/src/Umbraco.Web.UI.Client/lib/bootstrap/less/navbar.less
index a448255731..b4e1edf65f 100644
--- a/src/Umbraco.Web.UI.Client/lib/bootstrap/less/navbar.less
+++ b/src/Umbraco.Web.UI.Client/lib/bootstrap/less/navbar.less
@@ -193,10 +193,10 @@
 
 // Reset container width
 // Required here as we reset the width earlier on and the grid mixins don't override early enough
-.navbar-static-top .container,
+.navbar-static-top .container,  
 .navbar-fixed-top .container,
-.navbar-fixed-bottom .container {
-  #grid > .core > .span(@gridColumns);
+.navbar-fixed-bottom .container { 
+width: (@gridColumnWidth * @gridColumns) + (@gridGutterWidth * (@gridColumns - 1));
 }
 
 // Fixed to top