diff --git a/src/modules/simulator/CMakeLists.txt b/src/modules/simulator/CMakeLists.txt
index de452c5de4..0a7e221086 100644
--- a/src/modules/simulator/CMakeLists.txt
+++ b/src/modules/simulator/CMakeLists.txt
@@ -47,6 +47,8 @@ px4_add_module(
 		${SIMULATOR_SRCS}
 	DEPENDS
 		platforms__common
+		git_jmavsim
+		git_gazebo
 	)
 
 # vim: set noet ft=cmake fenc=utf-8 ff=unix :