diff --git a/heartbeat/includes/heartbeatactivity.inc b/heartbeat/includes/heartbeatactivity.inc
index 72c24a0..41a6bbb 100644
--- a/heartbeat/includes/heartbeatactivity.inc
+++ b/heartbeat/includes/heartbeatactivity.inc
@@ -56,6 +56,29 @@ class HeartbeatActivity {
   public $build_mode = 'none';
   public $content = array();
 
+  // Declare fields for _heartbeat_render_view to use - these are the db fields
+  // namespcaed with the $fieldalias, heartbeat_activity in this case
+  public $heartbeat_activity_uaid = NULL;
+  public $heartbeat_activity_tuaid = NULL;
+  public $heartbeat_activity_message_id = NULL;
+  public $heartbeat_activity_nid_info = NULL;
+  public $heartbeat_activity_nid_target_info = NULL;
+  public $heartbeat_activity_uid = NULL;
+  public $heartbeat_activity_uid_access = NULL;
+  public $heartbeat_activity_uid_target = NULL;
+  public $heartbeat_activity_nid_access = NULL;
+  public $heartbeat_activity_nid_target = NULL;
+  public $heartbeat_activity_nid_target_access = NULL;
+  public $heartbeat_activity_timestamp = NULL;
+  public $heartbeat_activity_language = NULL;
+  public $heartbeat_activity_message = NULL;
+  public $heartbeat_activity_message_concat = NULL;
+  public $heartbeat_activity_access = NULL;
+  public $heartbeat_activity_variables = NULL;
+  public $heartbeat_activity_additions = NULL;
+  public $heartbeat_activity_classes = NULL;
+  public $heartbeat_activity_actor = NULL;
+
   /**
    * constructor
    * @param $data Array or Object with fields that can match this object