diff --git a/assets/javascripts/discourse/components/google-dfp-ad.js.es6 b/assets/javascripts/discourse/components/google-dfp-ad.js.es6
index 7239f32..1fcf4e1 100755
--- a/assets/javascripts/discourse/components/google-dfp-ad.js.es6
+++ b/assets/javascripts/discourse/components/google-dfp-ad.js.es6
@@ -195,8 +195,11 @@ export default Ember.Component.extend({
     var ad = ads[this.get('placement')];
     if (!ad) { return; }
 
-    if (this.get('loadedGoogletag')) {
+    var self = this;
+
+    if (this.get('loadedGoogletag') && this.get('refreshOnChange')) {
       googletag.cmd.push(function() {
+        ad.setTargeting('discourse-category', self.get('category') ? self.get('category') : null);
         googletag.pubads().refresh([ad]);
       });
     }
@@ -209,6 +212,7 @@ export default Ember.Component.extend({
       googletag.cmd.push(function() {
         var ad = defineSlot(self.get('placement'), self.siteSettings);
         if (ad) {
+          ad.setTargeting('discourse-category', self.get('category') ? self.get('category') : null);
           googletag.display(self.get('divId'));
           googletag.pubads().refresh([ad]);
         }
diff --git a/assets/javascripts/discourse/templates/connectors/discovery-list-container-top/discourse-adplugin.hbs b/assets/javascripts/discourse/templates/connectors/discovery-list-container-top/discourse-adplugin.hbs
index 5718677..0400350 100644
--- a/assets/javascripts/discourse/templates/connectors/discovery-list-container-top/discourse-adplugin.hbs
+++ b/assets/javascripts/discourse/templates/connectors/discovery-list-container-top/discourse-adplugin.hbs
@@ -2,7 +2,7 @@
   {{google-adsense placement="topic-list-top"}}
 {{/if}}
 {{#if siteSettings.dfp_topic_list_top_code}}
-  {{google-dfp-ad placement="topic-list-top"}}
+  {{google-dfp-ad placement="topic-list-top" refreshOnChange=loading category=category.slug}}
 {{/if}}
 {{#if siteSettings.amazon_topic_list_top_src_code}}
   {{amazon-product-links placement="topic-list-top"}}
diff --git a/assets/javascripts/discourse/templates/connectors/post-bottom/discourse-adplugin.hbs b/assets/javascripts/discourse/templates/connectors/post-bottom/discourse-adplugin.hbs
index 84f0984..4d17491 100644
--- a/assets/javascripts/discourse/templates/connectors/post-bottom/discourse-adplugin.hbs
+++ b/assets/javascripts/discourse/templates/connectors/post-bottom/discourse-adplugin.hbs
@@ -2,7 +2,7 @@
 	{{google-adsense placement="post-bottom"}}
 {{/if}}
 {{#if postSpecificCountDFP}}
-  {{google-dfp-ad placement="post-bottom"}}
+  {{google-dfp-ad placement="post-bottom" category=topic.category.slug}}
 {{/if}}
 {{#if postSpecificCountAmazon}}
   {{amazon-product-links placement="post-bottom"}}
diff --git a/assets/javascripts/discourse/templates/connectors/topic-above-post-stream/discourse-adplugin.hbs b/assets/javascripts/discourse/templates/connectors/topic-above-post-stream/discourse-adplugin.hbs
index 691113e..2928caf 100644
--- a/assets/javascripts/discourse/templates/connectors/topic-above-post-stream/discourse-adplugin.hbs
+++ b/assets/javascripts/discourse/templates/connectors/topic-above-post-stream/discourse-adplugin.hbs
@@ -2,7 +2,7 @@
   {{google-adsense placement="topic-above-post-stream"}}
 {{/if}}
 {{#if siteSettings.dfp_topic_above_post_stream_code}}
-  {{google-dfp-ad placement="topic-above-post-stream" refreshOnChange=model.id}}
+  {{google-dfp-ad placement="topic-above-post-stream" refreshOnChange=model.id category=model.category.slug}}
 {{/if}}
 {{#if siteSettings.amazon_topic_above_post_stream_src_code}}
   {{amazon-product-links placement="topic-above-post-stream"}}
diff --git a/assets/javascripts/discourse/templates/connectors/topic-above-suggested/discourse-adplugin.hbs b/assets/javascripts/discourse/templates/connectors/topic-above-suggested/discourse-adplugin.hbs
index 4b68794..8f17b29 100644
--- a/assets/javascripts/discourse/templates/connectors/topic-above-suggested/discourse-adplugin.hbs
+++ b/assets/javascripts/discourse/templates/connectors/topic-above-suggested/discourse-adplugin.hbs
@@ -2,7 +2,7 @@
   {{google-adsense placement="topic-above-suggested"}}
 {{/if}}
 {{#if siteSettings.dfp_topic_above_suggested_code}}
-  {{google-dfp-ad placement="topic-above-suggested" refreshOnChange=model.id}}
+  {{google-dfp-ad placement="topic-above-suggested" refreshOnChange=model.id category=model.category.slug}}
 {{/if}}
 {{#if siteSettings.amazon_topic_above_suggested_src_code}}
   {{amazon-product-links placement="topic-above-suggested"}}