diff --git a/less/type.less b/less/type.less
index 0d56219340..61aa624a74 100644
--- a/less/type.less
+++ b/less/type.less
@@ -171,7 +171,7 @@ em {
 // Abbreviations and acronyms
 abbr[title] {
   cursor: help;
-  border-bottom: 1px dotted #ddd;
+  border-bottom: 1px dotted @grayLight;
 }
 abbr.initialism {
   font-size: 90%;