diff --git a/boards/px4/fmu-v2/default.cmake b/boards/px4/fmu-v2/default.cmake
index 7d24be8e7dd..6816fa8f013 100644
--- a/boards/px4/fmu-v2/default.cmake
+++ b/boards/px4/fmu-v2/default.cmake
@@ -10,7 +10,7 @@ px4_add_board(
 	BOOTLOADER ${PX4_SOURCE_DIR}/ROMFS/px4fmu_common/extras/px4fmuv3_bl.bin
 	IO px4_io-v2_default
 	#TESTING
-	#CONSTRAINED_FLASH
+	CONSTRAINED_FLASH
 	#UAVCAN_INTERFACES 2
 
 	SERIAL_PORTS