diff --git a/scss/_buttons.scss b/scss/_buttons.scss
index b4c28896bf..c6dbb5d503 100644
--- a/scss/_buttons.scss
+++ b/scss/_buttons.scss
@@ -105,11 +105,11 @@ fieldset[disabled] a.btn {
 //
 
 .btn-lg {
-  @include button-size($input-btn-padding-y-lg, $input-btn-padding-x-lg, $font-size-lg, $line-height-lg, $btn-border-radius-lg);
+  @include button-size($input-btn-padding-y-lg, $input-btn-padding-x-lg, $font-size-lg, $input-btn-line-height-lg, $btn-border-radius-lg);
 }
 
 .btn-sm {
-  @include button-size($input-btn-padding-y-sm, $input-btn-padding-x-sm, $font-size-sm, $line-height-sm, $btn-border-radius-sm);
+  @include button-size($input-btn-padding-y-sm, $input-btn-padding-x-sm, $font-size-sm, $input-btn-line-height-sm, $btn-border-radius-sm);
 }