diff --git a/lib/launchers/Base.js b/lib/launchers/Base.js
index f49ec9210..ca155316c 100644
--- a/lib/launchers/Base.js
+++ b/lib/launchers/Base.js
@@ -62,7 +62,7 @@ var BaseBrowser = function(id, emitter, captureTimeout, retryLimit) {
 
   this.kill = function(callback) {
     exitCallback = callback || function() {};
-    
+
     log.debug('Killing %s', self.name);
     if (self.state === FINISHED) {
       process.nextTick(exitCallback);