diff --git a/lib/less/parser.js b/lib/less/parser.js
index 41d79f11..51c8e03f 100644
--- a/lib/less/parser.js
+++ b/lib/less/parser.js
@@ -1255,7 +1255,7 @@ if (less.mode === 'browser' || less.mode === 'rhino') {
     // Used by `@import` directives
     //
     less.Parser.importer = function (path, paths, callback, env) {
-        if (path.charAt(0) !== '/' && paths.length > 0) {
+        if (!/^([a-z]+:)?\//.test(path) && paths.length > 0) {
             path = paths[0] + path;
         }
         // We pass `true` as 3rd argument, to force the reload of the import.