diff --git a/boards/px4/fmu-v2/default.cmake b/boards/px4/fmu-v2/default.cmake
index ddcb8f7271..9e759bc442 100644
--- a/boards/px4/fmu-v2/default.cmake
+++ b/boards/px4/fmu-v2/default.cmake
@@ -49,7 +49,7 @@ px4_add_board(
 		#pca9685
 		#protocol_splitter
 		#pwm_input
-		#pwm_out_sim
+		pwm_out_sim
 		px4flow
 		px4fmu
 		px4io