diff --git a/includes/discovery/discovery-protocols.inc.php b/includes/discovery/discovery-protocols.inc.php
index 1f144eb24d58..a7d11a9880f2 100644
--- a/includes/discovery/discovery-protocols.inc.php
+++ b/includes/discovery/discovery-protocols.inc.php
@@ -351,6 +351,8 @@ function ($v) {
                 $ifName = $lldp_local[$entry_key]['lldpLocPortDesc'];
             } elseif ($device['os'] == 'routeros') {
                 $ifIndex = $entry_key;
+            } elseif ($device['os'] == 'junos') {
+                $ifIndex = $entry_key;
             } elseif (isset($dot1d_array) && isset($dot1d_array[$entry_key]) && is_numeric($dot1d_array[$entry_key]['dot1dBasePortIfIndex'])) {
                 $ifIndex = $dot1d_array[$entry_key]['dot1dBasePortIfIndex'];
             } else {