diff --git a/style.css b/style.css
index 9633788..3f85a23 100755
--- a/style.css
+++ b/style.css
@@ -1411,3 +1411,8 @@ section.social div#twitter{
     width: 400px;
     float: left;
 }
+
+#slack-invite {
+	float: left;
+	margin-right: 6px;
+}
\ No newline at end of file
diff --git a/widget-topo.php b/widget-topo.php
index 7aa4857..75ec705 100644
--- a/widget-topo.php
+++ b/widget-topo.php
@@ -2,6 +2,9 @@
         <?php echo $widget_content;?>
     </div>
     <div class="shared">
+        <div id="slack-invite">
+            <script async defer src="https://slaking-phpsp.herokuapp.com/slackin.js"></script>
+        </div>
         <a href="http://www.meetup.com/php-sp/" target="_blank">
             <img alt="Meetup"
                  src="<?php bloginfo('template_url'); ?>/img/icons/meetup.png">