diff --git a/config/ownkb.conf b/config/ownkb.conf
index df21b54..2664f51 100644
--- a/config/ownkb.conf
+++ b/config/ownkb.conf
@@ -10,3 +10,6 @@ CONFIG_ZMK_IDLE_TIMEOUT=30000
 
 # Incr. bluetooth power
 CONFIG_BT_CTLR_TX_PWR_PLUS_8=y
+
+# enforce windows to show battery
+CONFIG_BT_GATT_ENFORCE_SUBSCRIPTION=y