Adsense / DFP (doubleclick for publishers) Display Ad problem

I recently migrated from doing regular adsense to DFP (doubleclick for publishers)


I'm now using DFP to display only adsense ads.


My issue is how image ads display now is different when I'm using DFP verses how they previously looked when I was using adsense directly.


Now the image ads show the URL at the bottom of the images.


Here is the code that I was using for the adsense ad (straight from adsense)
I've stopped using that ad code because I switched to DFP

<!-- 160x600 -->
<script type="text/javascript"><!--
google_ad_client = "ca-pub-xxxxxxxxxxxxxxxxxxxxxx";
/* 160_600 */
google_ad_slot = "xxxxxxxxxxxxxxxxxxx";
google_ad_width = 160;
google_ad_height = 600;
//-->
</script>
<script type="text/javascript"
src="http://pagead2.googlesyndication.com/pagead/show_ads.js">
</script>

Code (markup):

--------------------


Here is the code I use for DFP


I put this in the header.

<script type='text/javascript'>
var googletag = googletag || {};
googletag.cmd = googletag.cmd || [];
(function() {
var gads = document.createElement('script');
gads.async = true;
gads.type = 'text/javascript';
var useSSL = 'https:' == document.location.protocol;
gads.src = (useSSL ? 'https:' : 'http:') + 
'//www.googletagservices.com/tag/js/gpt.js';
var node = document.getElementsByTagName('script')[0];
node.parentNode.insertBefore(gads, node);
})();
</script>


<script type='text/javascript'>
googletag.cmd.push(function() {
googletag.defineSlot('/xxxxxxxxx/ad_sidebar_160x600', [160, 600], 'div-gpt-ad-xxxxxxxxxxxxxx').addService(googletag.pubads());
googletag.pubads().enableSingleRequest();
googletag.enableServices();
});
</script>

Code (markup):

I put this in as my ad code.

<!-- 160x600 -->
<div id='div-gpt-ad-xxxxxxxxxxxxxxxxx' style='width:160px; height:600px;'>
<script type='text/javascript'>
googletag.cmd.push(function() { googletag.display('div-gpt-ad-xxxxxxxxxxxxxxxxxxx'); });
</script>
</div>

Code (markup):

Can someone please help me get rid of the URL which shows under the image ads? I'm thinking I need to adjust my ad code somewhere. It does not seem normal to show the URL directly below the image. I've not seen it on other sites using DFP.


Any suggestions how to adjust my code to eliminate the URL would be appreciated. Thank you.