diff --git a/lib/less/less-error.js b/lib/less/less-error.js
index e7a0f613..505cbc89 100644
--- a/lib/less/less-error.js
+++ b/lib/less/less-error.js
@@ -1,6 +1,5 @@
 
-module.exports = LessError;
-function LessError(parser, e, env) {
+var LessError = module.exports = function LessError(parser, e, env) {
     var input = parser.getInput(e, env),
         loc = parser.getLocation(e.index, input),
         line = loc.line,
@@ -25,4 +24,4 @@ function LessError(parser, e, env) {
 }
 
 LessError.prototype = new Error();
-LessError.prototype.constructor = LessError;
\ No newline at end of file
+LessError.prototype.constructor = LessError;