diff --git a/webpack.mix.js b/webpack.mix.js
index 488f3d9..b8ae897 100644
--- a/webpack.mix.js
+++ b/webpack.mix.js
@@ -28,6 +28,7 @@ mix.
                 /^bg-/,
                 /^visible-/,
                 /^hidden-/,
+                /^btn/,
             ]
         }
     });