diff --git a/src/modules/vtol_att_control/vtol_att_control_params.c b/src/modules/vtol_att_control/vtol_att_control_params.c
new file mode 100644
index 0000000000..b9baa20466
--- /dev/null
+++ b/src/modules/vtol_att_control/vtol_att_control_params.c
@@ -0,0 +1,6 @@
+#include <systemlib/param/param.h>
+
+// number of engines
+PARAM_DEFINE_INT32(VTOL_MOT_COUNT,0);
+// idle pwm in multicopter mode
+PARAM_DEFINE_INT32(IDLE_PWM_MC,900);
\ No newline at end of file