diff --git a/conf/airframes/Poine/booz2_a1.xml b/conf/airframes/Poine/booz2_a1.xml
index 0f38723895..c801514fc9 100644
--- a/conf/airframes/Poine/booz2_a1.xml
+++ b/conf/airframes/Poine/booz2_a1.xml
@@ -213,7 +213,7 @@
     </target> 
     <subsystem name="radio_control" type="ppm"/>
     <subsystem name="actuators"     type="mkk"/>
-    <subsystem name="imu"           type="b2v1"/>
+    <subsystem name="imu"           type="b2_v1.0"/>
     <subsystem name="gps"           type="ublox"/>
     <subsystem name="ahrs"          type="cmpl"/>
   </firmware>
diff --git a/conf/autopilot/subsystems/rotorcraft/imu_b2v1.makefile b/conf/autopilot/subsystems/rotorcraft/imu_b2_v1.0.makefile
similarity index 100%
rename from conf/autopilot/subsystems/rotorcraft/imu_b2v1.makefile
rename to conf/autopilot/subsystems/rotorcraft/imu_b2_v1.0.makefile