diff --git a/src/platforms/jeff/Makefile.inc b/src/platforms/jeff/Makefile.inc
index bdbad4de..94efa963 100644
--- a/src/platforms/jeff/Makefile.inc
+++ b/src/platforms/jeff/Makefile.inc
@@ -11,6 +11,10 @@ ifeq ($(CUSTOM_SER), 1)
 CFLAGS += -DCUSTOM_SER
 endif
 
+ifeq ($(CONSOLE_NO_AUTO_CRLF), 1)
+CFLAGS += -DCONSOLE_NO_AUTO_CRLF
+endif
+
 CFLAGS += -mthumb -mcpu=cortex-m0plus \
 	-DSAMD -DSAMD21E17 -DBLACKMAGIC -I../libopencm3/include \
 	-Iplatforms/samd -msoft-float -ffunction-sections -fdata-sections -MD
diff --git a/src/platforms/samd/usbuart.c b/src/platforms/samd/usbuart.c
index 0d9c992e..3bb48a69 100644
--- a/src/platforms/samd/usbuart.c
+++ b/src/platforms/samd/usbuart.c
@@ -58,7 +58,7 @@ struct {
 /* non blocking putc function */
 static void usart_putc(char c)
 {
-#ifndef CONSOLE_NO_AUTO_CRLF
+#ifdef CONSOLE_NO_AUTO_CRLF
 	if (c == '\n')
 		usart_putc('\r');
 #endif