diff --git a/src/drivers/serial_uart.h b/src/drivers/serial_uart.h
index 5914915219..d57eb80bda 100755
--- a/src/drivers/serial_uart.h
+++ b/src/drivers/serial_uart.h
@@ -4,8 +4,6 @@
 #define UART1_TX_BUFFER_SIZE    256
 #define UART2_RX_BUFFER_SIZE    128
 #define UART2_TX_BUFFER_SIZE    64
-#define MAX_SERIAL_PORTS        2
-
 
 // FIXME this is a uart_t really.  Move the generic properties into a separate structure (serialPort_t) and update the code to use it
 typedef struct {