diff --git a/lib/less/index.js b/lib/less/index.js
index 369c123e..5f990f15 100644
--- a/lib/less/index.js
+++ b/lib/less/index.js
@@ -36,12 +36,14 @@ var less = {
     },
     writeError: function (ctx) {
         var extract = ctx.extract;
-        var error = [
-            stylize((ctx.line - 1) + ' ' + extract[0], 'grey'),
-            ctx.line + ' ' + stylize(extract[1].slice(0, ctx.column), 'green') +
-            stylize(stylize(extract[1][ctx.column], 'inverse') + extract[1].slice(ctx.column + 1), 'yellow'),
-            stylize((ctx.line + 1) + ' ' + extract[2], 'grey')
-        ].join('\n') + '\033[0m\n';
+        var error = [];
+
+        extract[0] && error.push(stylize((ctx.line - 1) + ' ' + extract[0], 'grey'));
+        error.push(ctx.line + ' ' + stylize(extract[1].slice(0, ctx.column), 'green')
+                            + stylize(stylize(extract[1][ctx.column], 'inverse')
+                            + extract[1].slice(ctx.column + 1), 'yellow'));
+        extract[2] && error.push(stylize((ctx.line + 1) + ' ' + extract[2], 'grey'));
+        error = error.join('\n') + '\033[0m\n';
 
         require('sys').puts(stylize(ctx.message, 'red'), error);
     }