diff --git a/tools/rc.local.sh b/tools/rc.local.sh
index ac25f11c3c1f2f1f43e3308567fd71628faafd3b..a7ccf764cef549f95aca4c44a9ed42a4c09a6c16 100755
--- a/tools/rc.local.sh
+++ b/tools/rc.local.sh
@@ -147,7 +147,7 @@ fi
 
 # Try to find mindstorms.startup directory (also on boot medium) which should include hook.sh
 echo "Looking for mindstorms.startup directory (also on boot medium) which should include hook.sh ..."
-for DIR in /cdrom/mindstorms.startup /mnt/localfs/*/mindstorms.startup; do
+for DIR in /cdrom/mindstorms.startup /isodevice/mindstorms.startup /mnt/localfs/*/mindstorms.startup; do
   [ -d "$DIR" ] || continue
   echo "Found mindstorms.startup.dir at ${DIR}. Searching for hook.sh ..."
   if [ ! -f "$DIR/hook.sh" ]; then