diff --git a/drivers/usb/serial/ftdi_sio.h b/drivers/usb/serial/ftdi_sio.h
index b51cbb0..a242bcf 100644
--- a/drivers/usb/serial/ftdi_sio.h
+++ b/drivers/usb/serial/ftdi_sio.h
@@ -245,6 +245,7 @@
 #define FTDI_ELV_WS300PC_PID	0xE0F6	/* PC-Wetterstation (WS 300 PC) */
 #define FTDI_ELV_FHZ1300PC_PID	0xE0E8	/* FHZ 1300 PC */
 #define FTDI_ELV_WS500_PID	0xE0E9	/* PC-Wetterstation (WS 500) */
+#define FTDI_ELV_EM1010PC_PID	0xE0EF	/* Engery monitor EM 1010 PC */
 
 /*
  * Definitions for ID TECH (www.idt-net.com) devices