diff --git a/mmdvmhost/lh.php b/mmdvmhost/lh.php
index 5a8058ea..0945a468 100755
--- a/mmdvmhost/lh.php
+++ b/mmdvmhost/lh.php
@@ -18,13 +18,11 @@
     $callsignLookupSvc = "RadioID";
 }
 
-// Safety net
-if (($callsignLookupSvc != "RadioID") && ($callsignLookupSvc != "QRZ")) { $callsignLookupSvc = "RadioID"; }
-
 // Setup the URL(s)
 $idLookupUrl = "https://database.radioid.net/database/view?id=";
-if ($callsignLookupSvc == "RadioID") { $callsignLookupUrl = "https://database.radioid.net/database/view?callsign="; }
+$callsignLookupUrl = "https://database.radioid.net/database/view?callsign=";
 if ($callsignLookupSvc == "QRZ") { $callsignLookupUrl = "https://www.qrz.com/db/"; }
+if (substr($callsignLookupSvc, 0, 4) === "http") { $callsignLookupUrl = $callsignLookupSvc; }
 
 ?>
 <b><?php echo $lang['last_heard_list'];?></b>