diff --git a/inst/lib/bsw4/dist/lux/_variables.scss b/inst/lib/bsw4/dist/lux/_variables.scss
index d410140..28c7d2b 100755
--- a/inst/lib/bsw4/dist/lux/_variables.scss
+++ b/inst/lib/bsw4/dist/lux/_variables.scss
@@ -64,9 +64,6 @@ $headings-color:              $gray-900 !default;
 
 $table-border-color:          rgba(0, 0, 0, .05) !default;
 
-// Buttons + Forms
-
-$input-btn-border-width:      0 !default;
 
 // Buttons
 
