diff --git a/conf/airframes/booz2_flixr.xml b/conf/airframes/booz2_flixr.xml
index aedcd48bb5..ea4d631ca8 100644
--- a/conf/airframes/booz2_flixr.xml
+++ b/conf/airframes/booz2_flixr.xml
@@ -207,7 +207,7 @@
 		#set GPS lag for horizontal filter
 		ap.CFLAGS += -DGPS_LAG=0.8 -DUSE_GPS_ACC4R
 
-        ap.CFLAGS += -DTELEMETRY_STARTUP_DELAY=3
+        ap.CFLAGS += -DBOOZ_START_DELAY=2
   </makefile>
 
 </airframe>
diff --git a/sw/airborne/booz/booz2_main.c b/sw/airborne/booz/booz2_main.c
index 3cf1787af4..5026d0b94d 100644
--- a/sw/airborne/booz/booz2_main.c
+++ b/sw/airborne/booz/booz2_main.c
@@ -126,7 +126,7 @@ STATIC_INLINE void booz2_main_init( void ) {
   int_enable();
 
 #ifdef BOOZ_START_DELAY
-  sys_time_usleep(BOOZ_START_DELAY);
+  sys_time_usleep((int)(BOOZ_START_DELAY*1e6));
 #endif
 
 }