diff --git a/sass/elements/form.sass b/sass/elements/form.sass
index 1c6495bb..ec7373e5 100644
--- a/sass/elements/form.sass
+++ b/sass/elements/form.sass
@@ -1,6 +1,7 @@
 $input:                     $grey-darker !default
 $input-background:          $white !default
 $input-border:              $grey-lighter !default
+$input-shadow:              inset 0 1px 2px rgba($black, 0.1) !default
 
 $input-hover:               $grey-darker !default
 $input-hover-border:        $grey-light !default
@@ -43,7 +44,7 @@ $input-radius:              $radius !default
 .input,
 .textarea
   +input
-  box-shadow: inset 0 1px 2px rgba($black, 0.1)
+  box-shadow: $input-shadow
   max-width: 100%
   width: 100%
   &[type="search"]