diff --git a/_projects/armv7m4-stm32l4x6-nucleo/board_config.h b/_projects/armv7m4-stm32l4x6-nucleo/board_config.h
index c82b0a226..87043c379 100644
--- a/_projects/armv7m4-stm32l4x6-nucleo/board_config.h
+++ b/_projects/armv7m4-stm32l4x6-nucleo/board_config.h
@@ -16,5 +16,6 @@
 
 #define TTY2         1
 #define UART_CONSOLE 2
+#define TTY2_DMA     1
 
 #endif