diff --git a/src/Z906.h b/src/Z906.h
index 4aece59..a206e60 100644
--- a/src/Z906.h
+++ b/src/Z906.h
@@ -97,28 +97,28 @@ const uint8_t EXP_MODEL_STATUS      = 0x0A;
 const uint8_t EXP_MODEL_TEMP        = 0x0C;
 
 const uint8_t STATUS_STX            = 0x00;
-const uint8_t STATUS_MODEL          =	0x01;
-const uint8_t STATUS_LENGTH         =	0x02;
-const uint8_t STATUS_MAIN_LEVEL     =	0x03;
-const uint8_t STATUS_READ_LEVEL     =	0x04;
-const uint8_t STATUS_CENTER_LEVEL   =	0x05;
-const uint8_t STATUS_SUB_LEVEL      =	0x06;
-const uint8_t STATUS_CURRENT_INPUT  =	0x07;
-const uint8_t STATUS_UNKNOWN        =	0x08;
-const uint8_t STATUS_FX_INPUT_4     =	0x09;
-const uint8_t STATUS_FX_INPUT_5     =	0x0A;
-const uint8_t STATUS_FX_INPUT_2     =	0x0B;
-const uint8_t STATUS_FX_INPUT_AUX   =	0x0C;
-const uint8_t STATUS_FX_INPUT_1     =	0x0D;
-const uint8_t STATUS_FX_INPUT_3     =	0x0E;
-const uint8_t STATUS_SPDIF_STATUS   =	0x0F;
-const uint8_t STATUS_SIGNAL_STATUS  =	0x10;
-const uint8_t STATUS_VER_A          =	0x11;
-const uint8_t STATUS_VER_B          =	0x12;
-const uint8_t STATUS_VER_C          =	0x13;
-const uint8_t STATUS_STBY           =	0x14;
-const uint8_t STATUS_AUTO_STBY      =	0x15;
-const uint8_t STATUS_CHECKSUM       =	0x16;
+const uint8_t STATUS_MODEL          = 0x01;
+const uint8_t STATUS_LENGTH         = 0x02;
+const uint8_t STATUS_MAIN_LEVEL     = 0x03;
+const uint8_t STATUS_READ_LEVEL     = 0x04;
+const uint8_t STATUS_CENTER_LEVEL   = 0x05;
+const uint8_t STATUS_SUB_LEVEL      = 0x06;
+const uint8_t STATUS_CURRENT_INPUT  = 0x07;
+const uint8_t STATUS_UNKNOWN        = 0x08;
+const uint8_t STATUS_FX_INPUT_4     = 0x09;
+const uint8_t STATUS_FX_INPUT_5     = 0x0A;
+const uint8_t STATUS_FX_INPUT_2     = 0x0B;
+const uint8_t STATUS_FX_INPUT_AUX   = 0x0C;
+const uint8_t STATUS_FX_INPUT_1     = 0x0D;
+const uint8_t STATUS_FX_INPUT_3     = 0x0E;
+const uint8_t STATUS_SPDIF_STATUS   = 0x0F;
+const uint8_t STATUS_SIGNAL_STATUS  = 0x10;
+const uint8_t STATUS_VER_A          = 0x11;
+const uint8_t STATUS_VER_B          = 0x12;
+const uint8_t STATUS_VER_C          = 0x13;
+const uint8_t STATUS_STBY           = 0x14;
+const uint8_t STATUS_AUTO_STBY      = 0x15;
+const uint8_t STATUS_CHECKSUM       = 0x16;
 
 HardwareSerial* dev_serial;