diff --git a/scss/_variables.scss b/scss/_variables.scss
index 24e1417729467241458211d69cbb8254f23df8f7..be580deb334db623fe68d885df0823f6df945b87 100644
--- a/scss/_variables.scss
+++ b/scss/_variables.scss
@@ -412,7 +412,7 @@ $input-focus-box-shadow:                $input-btn-focus-box-shadow !default;
 
 $input-placeholder-color:               $gray-600 !default;
 
-$input-height-border:                   $input-btn-border-width * 2 !default;
+$input-height-border:                   $input-border-width * 2 !default;
 
 $input-height-inner:                    ($font-size-base * $input-btn-line-height) + ($input-btn-padding-y * 2) !default;
 $input-height:                          calc(#{$input-height-inner} + #{$input-height-border}) !default;