diff --git a/less/type.less b/less/type.less
index 3ec976eefc..68ba6017bf 100644
--- a/less/type.less
+++ b/less/type.less
@@ -238,7 +238,7 @@ abbr[data-original-title] {
 }
 .initialism {
   font-size: 90%;
-  text-transform: uppercase;
+  .text-uppercase();
 }
 
 // Blockquotes