diff --git a/_sass/libs/_skel.scss b/_sass/libs/_skel.scss
index 438b147..1057577 100644
--- a/_sass/libs/_skel.scss
+++ b/_sass/libs/_skel.scss
@@ -4,6 +4,7 @@
 
 	/// Breakpoints.
 	/// @var {list}
+	$breakpoints: null;
 	$breakpoints: () !global;
 
 	/// Vendor prefixes.