diff --git a/etc/inc/vpn.inc b/etc/inc/vpn.inc
index 45b27ff9a9..987e3d34ea 100644
--- a/etc/inc/vpn.inc
+++ b/etc/inc/vpn.inc
@@ -675,6 +675,9 @@ EOD;
 
 				if (!empty($ph1ent['pre-shared-key'])) {
 					$pskconf .= "{$myid} {$peerid} : PSK 0s" . base64_encode(trim($ph1ent['pre-shared-key'])) . "\n";
+					if (isset($ph1ent['mobile'])) {
+						$pskconf .= " : PSK 0s" . base64_encode(trim($ph1ent['pre-shared-key'])) . "\n";
+					}
 				}
 			}
 		}