diff --git a/arch/avr/src/at90usb/at90usb_lowconsole.c b/arch/avr/src/at90usb/at90usb_lowconsole.c
index 5360eb44d5..bbba4478b9 100644
--- a/arch/avr/src/at90usb/at90usb_lowconsole.c
+++ b/arch/avr/src/at90usb/at90usb_lowconsole.c
@@ -199,7 +199,7 @@ void usart1_configure(void)
 
 #if CONFIG_USART1_PARITY == 1
   ucsr1c |= ((1 << UPM11) | (1 << UPM10)); /* Odd parity */
-#else
+#elif CONFIG_USART1_PARITY == 2
   ucsr1c |= (1 << UPM11);                  /* Even parity */
 #endif
 
diff --git a/arch/avr/src/atmega/atmega_lowconsole.c b/arch/avr/src/atmega/atmega_lowconsole.c
index bd49a04917..c1fda62444 100644
--- a/arch/avr/src/atmega/atmega_lowconsole.c
+++ b/arch/avr/src/atmega/atmega_lowconsole.c
@@ -280,7 +280,7 @@ void usart0_configure(void)
 
 #if CONFIG_USART0_PARITY == 1
   ucsr0c |= ((1 << UPM01) | (1 << UPM00)); /* Odd parity */
-#else
+#elif CONFIG_USART0_PARITY == 2
   ucsr0c |= (1 << UPM00);                  /* Even parity */
 #endif
 
@@ -357,7 +357,7 @@ void usart1_configure(void)
 
 #if CONFIG_USART1_PARITY == 1
   ucsr1c |= ((1 << UPM11) | (1 << UPM10)); /* Odd parity */
-#else
+#elif CONFIG_USART1_PARITY == 2
   ucsr1c |= (1 << UPM11);                  /* Even parity */
 #endif