diff --git a/sass/omega/utility/_buttons.scss b/sass/omega/utility/_buttons.scss
index 6f02a3c..2d54928 100644
--- a/sass/omega/utility/_buttons.scss
+++ b/sass/omega/utility/_buttons.scss
@@ -1,8 +1,8 @@
 @import "panels";
 
-$button-color: #888;
-$button-background-color: #eee;
-$button-radius: 3px;
+$button-color: #888 !default;
+$button-background-color: #eee !default;
+$button-radius: 3px !default;
 
 @mixin button($color: $button-color, $background-color: $button-background-color, $radius: $button-radius) {
   @include fancy-panel($color, $background-color, $radius);
@@ -21,4 +21,4 @@ $button-radius: 3px;
   &:active {
     @include single-box-shadow(rgba(0, 0, 0, .2), 0, 1px, 1px, false, true);
   }
-}
\ No newline at end of file
+}