diff --git a/scss/_variables.scss b/scss/_variables.scss
index 36241680b2..cf9ba56c6f 100644
--- a/scss/_variables.scss
+++ b/scss/_variables.scss
@@ -969,27 +969,16 @@ $form-check-inline-margin-end:    1rem !default;
 $form-switch-color:               rgba($black, .25) !default;
 $form-switch-width:               2em !default;
 $form-switch-padding-start:       $form-switch-width + .5em !default;
-@if $enable-rounded {
-  $form-switch-bg-image:            url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'><circle r='3' fill='#{$form-switch-color}'/></svg>") !default;
-} @else {
-  $form-switch-bg-image:            url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'><rect x='-3' y='-3' width='6' height='6' fill='#{$form-switch-color}'/></svg>") !default;
-}
+
+$form-switch-bg-image:            if(enable-rounded, url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'><circle r='3' fill='#{$form-switch-color}'/></svg>"), url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'><rect x='-3' y='-3' width='6' height='6' fill='#{$form-switch-color}'/></svg>")) !default;
 $form-switch-border-radius:       $form-switch-width !default;
 $form-switch-transition:          background-position .15s ease-in-out !default;
 
 $form-switch-focus-color:         $input-focus-border-color !default;
-@if $enable-rounded {
-  $form-switch-focus-bg-image:      url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'><circle r='3' fill='#{$form-switch-focus-color}'/></svg>") !default;
-} @else {
-  $form-switch-focus-bg-image:      url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'><rect x='-3' y='-3' width='6' height='6' fill='#{$form-switch-focus-color}'/></svg>") !default;
-}
+$form-switch-focus-bg-image:      if(enable-rounded, url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'><circle r='3' fill='#{$form-switch-focus-color}'/></svg>"), url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'><rect x='-3' y='-3' width='6' height='6' fill='#{$form-switch-focus-color}'/></svg>")) !default;
 
 $form-switch-checked-color:       $component-active-color !default;
-@if $enable-rounded {
-  $form-switch-checked-bg-image:    url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'><circle r='3' fill='#{$form-switch-checked-color}'/></svg>") !default;
-} @else {
-  $form-switch-checked-bg-image:    url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'><rect x='-3' y='-3' width='6' height='6' fill='#{$form-switch-checked-color}'/></svg>") !default;
-}
+$form-switch-checked-bg-image:    if(enable-rounded, url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'><circle r='3' fill='#{$form-switch-checked-color}'/></svg>"), url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'><rect x='-3' y='-3' width='6' height='6' fill='#{$form-switch-checked-color}'/></svg>")) !default;
 $form-switch-checked-bg-position: right center !default;
 // scss-docs-end form-switch-variables