diff --git a/conf/autopilot/subsystems/fixedwing/autopilot.makefile b/conf/autopilot/subsystems/fixedwing/autopilot.makefile
index c070c25452..d63af15830 100644
--- a/conf/autopilot/subsystems/fixedwing/autopilot.makefile
+++ b/conf/autopilot/subsystems/fixedwing/autopilot.makefile
@@ -120,7 +120,7 @@ ns_srcs	   	+= $(SRC_FIRMWARE)/main.c
 #
 ns_CFLAGS 		+= -DUSE_LED
 ifneq ($(SYS_TIME_LED),none)
-  ns_CFLAGS 	+= -DSYS_TIME_LED=1
+  ns_CFLAGS 	+= -DSYS_TIME_LED=$(SYS_TIME_LED)
 endif
 
 #