diff --git a/mk/VRBRAIN/config_vrubrain-v51_APM.mk b/mk/VRBRAIN/config_vrubrain-v51_APM.mk
index 72ded02fdd..560dbe32b7 100644
--- a/mk/VRBRAIN/config_vrubrain-v51_APM.mk
+++ b/mk/VRBRAIN/config_vrubrain-v51_APM.mk
@@ -61,7 +61,7 @@ MODULES		+= systemcmds/bl_update
 
 
 MODULES		+= systemcmds/pwm
-
+MODULES		+= systemcmds/esc_calib
 MODULES		+= systemcmds/reboot
 MODULES		+= systemcmds/top