diff --git a/sonoff/language/cs-CZ.h b/sonoff/language/cs-CZ.h
index 2f51ccc93..0a3430e01 100644
--- a/sonoff/language/cs-CZ.h
+++ b/sonoff/language/cs-CZ.h
@@ -456,6 +456,7 @@
 #define D_SENSOR_I2C_SCL  "I2C SCL"
 #define D_SENSOR_I2C_SDA  "I2C SDA"
 #define D_SENSOR_WS2812   "WS2812"
+#define D_SENSOR_DFR562   "MP3 Player"
 #define D_SENSOR_IRSEND   "IRsend"
 #define D_SENSOR_SWITCH   "Spínač"   // Suffix "1"
 #define D_SENSOR_BUTTON   "Tlačítko"   // Suffix "1"