diff --git a/supervisor/dbus/payloads/interface_update.tmpl b/supervisor/dbus/payloads/interface_update.tmpl
index 7b1758503..3851aa127 100644
--- a/supervisor/dbus/payloads/interface_update.tmpl
+++ b/supervisor/dbus/payloads/interface_update.tmpl
@@ -89,12 +89,15 @@
         {
         {% if interface.wifi.auth == "wep" %}
             'auth-alg': <'none'>,
-            'key-mgmt': <'none'>,
+            'key-mgmt': <'none'>
         {% elif interface.wifi.auth == "wpa-psk" %}
             'auth-alg': <'open'>,
-            'key-mgmt': <'wpa-psk'>,
+            'key-mgmt': <'wpa-psk'>
         {% endif %}
+        {% if interface.wifi.psk %}
+            ,
             'psk': <'{{ interface.wifi.psk }}'>
+        {% endif %}
 {% endif %}
         }
 {% endif %}