diff --git a/firmware/lib/uart.h b/firmware/lib/uart.h
index dbb4d37..0b30f22 100644
--- a/firmware/lib/uart.h
+++ b/firmware/lib/uart.h
@@ -14,8 +14,10 @@
  */
 /* This library handles the USART configuration */
 
-/* set atmolight serial baudrate, in bits per second (with 8N1 8 bits, no parity bit, 1 stop bit settings) */
-#define BAUD 38400
+/* set tolerance to 3% to allow 115200 baudrate with 16 MHz clock */
+#define BAUD_TOL 3
+/* serial baudrate, in bits per second (with 8N1 8 bits, no parity bit, 1 stop bit settings) */
+#define BAUD 115200
 
 /* input & output streams */
 FILE uart_output;