diff --git a/public/css/inventory.styl b/public/css/inventory.styl
index 669be6a159..b442e30c9b 100644
--- a/public/css/inventory.styl
+++ b/public/css/inventory.styl
@@ -114,7 +114,6 @@ menu.pets .customize-menu
 // styles for pets that have been fed until they evolve into a mount
 .pet-evolved
     opacity: 0.1
-    -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=10)"
     //if this could be changed to the opacity talked about? can't figure it out
 
 .selectableInventory