diff --git a/plugins/search2/Search2Triggers.php b/plugins/search2/Search2Triggers.php
index 7c016b4..0a3b849 100644
--- a/plugins/search2/Search2Triggers.php
+++ b/plugins/search2/Search2Triggers.php
@@ -16,8 +16,13 @@ class SavedSearchSubscriptionTrigger
 
         $documentid = $document->getId();
 
-        $sql = "INSERT INTO search_saved_events (document_id) VALUES ($documentid)";
-        DBUtil::runQuery($sql);
+        $sql = "SELECT document_id FROM search_saved_events WHERE document_id=$documentid";
+		$rs = DBUtil::getResultArray($sql);
+		if (count($rs) == 0)
+		{
+        	$sql = "INSERT INTO search_saved_events (document_id) VALUES ($documentid)";
+	        DBUtil::runQuery($sql);
+		}
     }
 }