diff --git a/lib/less/parser.js b/lib/less/parser.js
index f6d9f5c..1fcd4f7 100644
--- a/lib/less/parser.js
+++ b/lib/less/parser.js
@@ -198,7 +198,7 @@ less.Parser = function Parser(env) {
             input = str.replace(/\r\n/g, '\n');
 
             // Split the input into chunks,
-            // delimited by /\n\n/ and 
+            // delimited by /\n\n/ and
             // removing comments (see rationale above),
             // depending on the level of optimization.
             if (that.optimization > 0) {