diff --git a/nspanel-lovelace-ui/config.yaml b/nspanel-lovelace-ui/config.yaml
index 3b28d444..2c90cef1 100644
--- a/nspanel-lovelace-ui/config.yaml
+++ b/nspanel-lovelace-ui/config.yaml
@@ -1,6 +1,6 @@
 # https://developers.home-assistant.io/docs/add-ons/configuration#add-on-config
 name: NSPanel Lovelace UI Addon
-version: "4.7.21"
+version: "4.7.22"
 slug: nspanel-lovelace-ui
 description: NSPanel Lovelace UI Addon
 services:
diff --git a/nspanel-lovelace-ui/rootfs/usr/bin/mqtt-manager/panel.py b/nspanel-lovelace-ui/rootfs/usr/bin/mqtt-manager/panel.py
index 6c2aacf1..4f1d6bad 100644
--- a/nspanel-lovelace-ui/rootfs/usr/bin/mqtt-manager/panel.py
+++ b/nspanel-lovelace-ui/rootfs/usr/bin/mqtt-manager/panel.py
@@ -126,7 +126,7 @@ class LovelaceUIPanel:
         libs.panel_cmd.timeout(self.sendTopic, sleepTimeout)
         self.dimmode()
 
-    def dimmode():
+    def dimmode(self):
         # send dimmode
         dimValue, dimValueNormal = ha_control.calculate_dim_values(
             self.settings.get("sleepTracking"),