diff --git a/conf/airframes/fraser_lisa_m_rotorcraft.xml b/conf/airframes/fraser_lisa_m_rotorcraft.xml
index 7b91b601f8..f6a7e0df38 100644
--- a/conf/airframes/fraser_lisa_m_rotorcraft.xml
+++ b/conf/airframes/fraser_lisa_m_rotorcraft.xml
@@ -40,6 +40,7 @@
     <target name="test_imu_aspirin"    board="lisa_m_1.0"/>
     <target name="test_rc_spektrum"    board="lisa_m_1.0"/>
     <target name="test_baro"           board="lisa_m_1.0"/>
+    <target name="test_imu_aspirin"    board="lisa_m_1.0"/>
     <!--<target name="test_imu"           board="lisa_m_1.0"/>
     <target name="test_rc_ppm"			board="lisa_m_1.0"/>
     <target name="test_adc"			board="lisa_m_1.0"/>
diff --git a/sw/airborne/booz/test/booz_test_imu.c b/sw/airborne/booz/test/booz_test_imu.c
index cc2b745f02..556b9f10e7 100644
--- a/sw/airborne/booz/test/booz_test_imu.c
+++ b/sw/airborne/booz/test/booz_test_imu.c
@@ -51,7 +51,7 @@ static inline void on_mag_event(void);
 int main( void ) {
   main_init();
   while(1) {
-    if (sys_time_periodic())
+    if (sys_time_check_and_ack_timer(0))
       main_periodic_task();
     main_event_task();
   }
@@ -61,9 +61,10 @@ int main( void ) {
 static inline void main_init( void ) {
 
   mcu_init();
-  sys_time_init();
-  imu_init();
 
+  sys_time_register_timer((1./PERIODIC_FREQUENCY), NULL);
+
+  imu_init();
 
   mcu_int_enable();
 }