diff --git a/cmake/posix/configs/config-posix-sitl.cmake b/cmake/posix/configs/config-posix-sitl.cmake
index ece121908c..1b5672aef1 100644
--- a/cmake/posix/configs/config-posix-sitl.cmake
+++ b/cmake/posix/configs/config-posix-sitl.cmake
@@ -20,6 +20,7 @@ function(px4_set_config_modules out_module_list)
 		systemcmds/reboot
 		modules/uORB
 		modules/systemlib
+		modules/systemlib/mixer
 		modules/sensors
 		modules/simulator
 		modules/mavlink
diff --git a/src/modules/simulator/CMakeLists.txt b/src/modules/simulator/CMakeLists.txt
index 13025e5eab..1e81695b97 100644
--- a/src/modules/simulator/CMakeLists.txt
+++ b/src/modules/simulator/CMakeLists.txt
@@ -30,6 +30,12 @@
 # POSSIBILITY OF SUCH DAMAGE.
 #
 ############################################################################
+set(SIMULATOR_SRCS simulator.cpp)
+if (NOT ${OS} STREQUAL "qurt")
+	list(APPEND SIMULATOR_SRCS
+		simulator_mavlink.cpp)
+endif()
+
 px4_add_module(
 	MODULE modules__simulator
 	MAIN simulator
@@ -40,8 +46,9 @@ px4_add_module(
 		-Wno-packed
 		
 	SRCS
-		simulator.cpp
+		${SIMULATOR_SRCS}
 	DEPENDS
 		platforms__common
 	)
+
 # vim: set noet ft=cmake fenc=utf-8 ff=unix :