diff --git a/lib/tools/phantomas/custom_modules/modules/javaScriptBottleYLT/javaScriptBottleYLT.js b/lib/tools/phantomas/custom_modules/modules/javaScriptBottleYLT/javaScriptBottleYLT.js
index ae459f9..b1b06ce 100644
--- a/lib/tools/phantomas/custom_modules/modules/javaScriptBottleYLT/javaScriptBottleYLT.js
+++ b/lib/tools/phantomas/custom_modules/modules/javaScriptBottleYLT/javaScriptBottleYLT.js
@@ -4,44 +4,56 @@
  * @see http://www.nczonline.net/blog/2013/06/25/eval-isnt-evil-just-misunderstood/
  * @see http://www.quirksmode.org/blog/archives/2005/06/three_javascrip_1.html
  * @see http://www.stevesouders.com/blog/2012/04/10/dont-docwrite-scripts/
+ *
+ * Run phantomas with --spy-eval to count eval() calls (see issue #467)
  */
 /* global document: true, window: true */
 
-exports.version = '0.1.a';
+exports.version = '0.2';
 
 exports.module = function(phantomas) {
     'use strict';
+    
+    phantomas.setMetric('documentWriteCalls'); //@desc number of calls to either document.write or document.writeln @offenders
+    phantomas.setMetric('evalCalls'); // @desc number of calls to eval (either direct or via setTimeout / setInterval) @offenders
 
-    phantomas.setMetric('documentWriteCalls'); //@desc number of calls to either document.write or document.writeln
-    phantomas.setMetric('evalCalls'); // @desc number of calls to eval (either direct or via setTimeout / setInterval)
+    // spy calls to eval only when requested (issue #467)
+    var spyEval = phantomas.getParam('spy-eval') === true;
+    if (!spyEval) {
+        phantomas.log('javaScriptBottlenecks: to spy calls to eval() run phantomas with --spy-eval option');
+    }
 
     phantomas.once('init', function() {
-        phantomas.evaluate(function() {
+        phantomas.evaluate(function(spyEval) {
             (function(phantomas) {
                 function report(msg, caller, backtrace, metric) {
                     phantomas.log(msg + ': from ' + caller + '!');
                     phantomas.log('Backtrace: ' + backtrace);
+
                     phantomas.incrMetric(metric);
+                    phantomas.addOffender(metric, "%s from %s", msg, caller);
                 }
 
                 // spy calls to eval()
-                /*phantomas.spy(window, 'eval', function(code) {
-                    report('eval() called directly', phantomas.getCaller(), phantomas.getBacktrace(), 'evalCalls');
-                    phantomas.log('eval\'ed code: ' + (code || '').substring(0, 150) + '(...)');
-                });*/
+                if (spyEval) {
+                    phantomas.spy(window, 'eval', function(code) {
+                        report('eval() called directly', phantomas.getCaller(), phantomas.getBacktrace(), 'evalCalls');
+                        phantomas.log('eval\'ed code: ' + (code || '').substring(0, 150) + '(...)');
+                    });
+                }
 
                 // spy calls to setTimeout / setInterval with string passed instead of a function
-                /*phantomas.spy(window, 'setTimeout', function(fn, interval) {
+                phantomas.spy(window, 'setTimeout', function(fn, interval) {
                     if (typeof fn !== 'string') return;
 
                     report('eval() called via setTimeout("' + fn + '")', phantomas.getCaller(), phantomas.getBacktrace(), 'evalCalls');
-                });*/
+                });
 
-                /*phantomas.spy(window, 'setInterval', function(fn, interval) {
+                phantomas.spy(window, 'setInterval', function(fn, interval) {
                     if (typeof fn !== 'string') return;
 
                     report('eval() called via setInterval("' + fn + '")', phantomas.getCaller(), phantomas.getBacktrace(), 'evalCalls');
-                });*/
+                });
 
                 // spy document.write(ln)
                 phantomas.spy(document, 'write', function(arg) {
@@ -52,6 +64,6 @@ exports.module = function(phantomas) {
                     report('document.writeln() used', phantomas.getCaller(), phantomas.getBacktrace(), 'documentWriteCalls');
                 });
             })(window.__phantomas);
-        });
+        }, spyEval);
     });
 };