diff --git a/avr/devices/n21/main/main.asm b/avr/devices/n21/main/main.asm
index c3bc3a4..58ebf4c 100644
--- a/avr/devices/n21/main/main.asm
+++ b/avr/devices/n21/main/main.asm
@@ -59,8 +59,8 @@
 
 ; #define MODULES_TIMER
 #define MODULES_CLOCK
-;#define MODULES_LED_SIMPLE
-#define MODULES_LED_ACTIVITY
+#define MODULES_LED_SIMPLE
+;#define MODULES_LED_ACTIVITY
 #define MODULES_NETWORK
 #define MODULES_COM2W
 #define MODULES_TWI_MASTER
diff --git a/avr/devices/n28/main/main.asm b/avr/devices/n28/main/main.asm
index e7b2008..76228d6 100644
--- a/avr/devices/n28/main/main.asm
+++ b/avr/devices/n28/main/main.asm
@@ -59,8 +59,8 @@
 
 ; #define MODULES_TIMER
 #define MODULES_CLOCK
-;#define MODULES_LED_SIMPLE
-#define MODULES_LED_ACTIVITY
+#define MODULES_LED_SIMPLE
+;#define MODULES_LED_ACTIVITY
 #define MODULES_NETWORK
 #define MODULES_COM2W
 #define MODULES_TWI_MASTER