diff --git a/app/src/main/java/com/example/medilightv2android/ble/BleManager.kt b/app/src/main/java/com/example/medilightv2android/ble/BleManager.kt
index fd326cc..fa14a96 100644
--- a/app/src/main/java/com/example/medilightv2android/ble/BleManager.kt
+++ b/app/src/main/java/com/example/medilightv2android/ble/BleManager.kt
@@ -354,7 +354,7 @@ class BleManager private constructor(private val context: Context) {
     }
 
     fun sendLedMode(state: Int) {
-        sendRaw(CRC16.buildCommandASCII("mls", "$state"))
+        sendRaw(CRC16.buildCommandASCII("mls", " $state"))
     }
 
     fun sendImuQuery() {