diff --git a/scss/_mixins.scss b/scss/_mixins.scss
index f96719b6a..09ea96d92 100644
--- a/scss/_mixins.scss
+++ b/scss/_mixins.scss
@@ -19,7 +19,7 @@
 }
 
 @mixin fa-icon-flip($horiz, $vert, $rotation) {
-  filter: progid:DXImageTransform.Microsoft.BasicImage(rotation=#{$rotation});
+  filter: progid:DXImageTransform.Microsoft.BasicImage(rotation=#{$rotation}, mirror=1);
   -webkit-transform: scale($horiz, $vert);
       -ms-transform: scale($horiz, $vert);
           transform: scale($horiz, $vert);
diff --git a/src/assets/font-awesome/scss/_mixins.scss b/src/assets/font-awesome/scss/_mixins.scss
index 500659b7b..31c52da65 100644
--- a/src/assets/font-awesome/scss/_mixins.scss
+++ b/src/assets/font-awesome/scss/_mixins.scss
@@ -15,7 +15,7 @@
 }
 
 @mixin fa-icon-flip($horiz, $vert, $rotation) {
-  filter: progid:DXImageTransform.Microsoft.BasicImage(rotation=#{$rotation});
+  filter: progid:DXImageTransform.Microsoft.BasicImage(rotation=#{$rotation}, mirror=1);
   -webkit-transform: scale($horiz, $vert);
       -ms-transform: scale($horiz, $vert);
           transform: scale($horiz, $vert);