diff --git a/blocks/tags/block_tags.php b/blocks/tags/block_tags.php
index 6b1a7930da115..d1a037117d8cd 100644
--- a/blocks/tags/block_tags.php
+++ b/blocks/tags/block_tags.php
@@ -81,6 +81,7 @@ public function get_content() {
         }
 
         $this->content = new stdClass;
+        $this->content->text = '';
         $this->content->footer = '';
 
         // Get a list of tags.