diff --git a/plugins/af_psql_trgm/init.php b/plugins/af_psql_trgm/init.php
index 02a0faba3..aebe3d082 100644
--- a/plugins/af_psql_trgm/init.php
+++ b/plugins/af_psql_trgm/init.php
@@ -179,6 +179,9 @@ class Af_Psql_Trgm extends Plugin {
 		$enabled_feeds = $this->host->get($this, "enabled_feeds");
 		if (!array($enabled_feeds)) $enabled_feeds = array();
 
+		$enabled_feeds = $this->filter_unknown_feeds($enabled_feeds);
+		$this->host->set($this, "enabled_feeds", $enabled_feeds);
+
 		if (count($enabled_feeds) > 0) {
 			print "<h3>" . __("Currently enabled for (click to edit):") . "</h3>";
 
@@ -276,5 +279,20 @@ class Af_Psql_Trgm extends Plugin {
 		return 2;
 	}
 
+	private function filter_unknown_feeds($enabled_feeds) {
+		$tmp = array();
+
+		foreach ($enabled_feeds as $feed) {
+
+			$result = db_query("SELECT id FROM ttrss_feeds WHERE id = '$feed' AND owner_uid = " . $_SESSION["uid"]);
+
+			if (db_num_rows($result) != 0) {
+				array_push($tmp, $feed);
+			}
+		}
+
+		return $tmp;
+	}
+
 }
 ?>