diff --git a/src/styles/_project.sass b/src/styles/_project.sass
index af1f4130..87860cd6 100644
--- a/src/styles/_project.sass
+++ b/src/styles/_project.sass
@@ -30,6 +30,7 @@
 	z-index: $z-index-base + 5
 	width: $project_nav-width
 	overflow: hidden
+	background-color: $color-background-nav
 
 	+media-xs
 		display: block