diff --git a/packages/test-data/css/_main/variables.css b/packages/test-data/css/_main/variables.css
index 6afac9b39..79f2cef83 100644
--- a/packages/test-data/css/_main/variables.css
+++ b/packages/test-data/css/_main/variables.css
@@ -95,3 +95,6 @@ div#carrot {
 div#potato {
   color: blue;
 }
+.icon-5_large {
+  background-image: url(/img/icon/5_large.svg);
+}
diff --git a/packages/test-data/less/_main/variables.less b/packages/test-data/less/_main/variables.less
index c03d1bff4..aa7a1686f 100644
--- a/packages/test-data/less/_main/variables.less
+++ b/packages/test-data/less/_main/variables.less
@@ -159,3 +159,9 @@ each(@items, {
     color: blue;
   }
 })
+
+// https://github.com/less/less.js/issues/2462
+@type: 5_large;
+.icon-@{type} {
+  background-image: ~"url(/img/icon/@{type}.svg)";
+}