diff --git a/pi-gen-overlay/stage3/20-install-ros/03-run.sh b/pi-gen-overlay/stage3/20-install-ros/03-run.sh
index 84bf82d..005c4dc 100755
--- a/pi-gen-overlay/stage3/20-install-ros/03-run.sh
+++ b/pi-gen-overlay/stage3/20-install-ros/03-run.sh
@@ -14,7 +14,9 @@ tar -xf "$ROOTFS_DIR"/tmp/install/ros.tar -C "$ROOTFS_DIR"/opt/ros/kinetic
 
 on_chroot <<-EOF
     rosdep init
-    su pi -c "rosdep update"
+
+    su - pi
     
-    su pi -c "rosdep install --from-paths /opt/ros/kinetic/share --ignore-src --rosdistro kinetic -y --os=debian:stretch"
+    rosdep update
+    rosdep install --from-paths /opt/ros/kinetic/share --ignore-src --rosdistro kinetic -y --os=debian:stretch
 EOF
\ No newline at end of file