diff --git a/dockerFile/Dockerfile_px4_sim_with_GPU b/dockerFile/Dockerfile_px4_sim_with_GPU
index 0223a8c..10f2487 100755
--- a/dockerFile/Dockerfile_px4_sim_with_GPU
+++ b/dockerFile/Dockerfile_px4_sim_with_GPU
@@ -7,6 +7,7 @@ ENV DEBIAN_FRONTEND=noninteractive
 ENV QT_X11_NO_MITSHM=1
 ENV LANG=en_US.UTF-8
 ENV ROS2_INSTALL_PATH=/opt/ros/$ROS_DISTRO
+ENV ROS_DISTRO=humble
 ENV WORKDIR=/ws_px4
 WORKDIR ${WORKDIR}