diff --git a/quickstart/02_create_ckdtree.sh b/quickstart/02_create_ckdtree.sh
index f68ace71906df908748af24c5355a239b53bd3b1..1e7534d1143508f1d439580b9d24f8bc1d6cbcd9 100755
--- a/quickstart/02_create_ckdtree.sh
+++ b/quickstart/02_create_ckdtree.sh
@@ -10,7 +10,7 @@ source_dir=`cat source_dir.txt`
 
 grid_dir="${HOME}/pyicon_data/grids/r2b4_oce_r0004"
 if [ ! -d ${grid_dir} ]; then
-  mkdir ${grid_dir}
+  mkdir -p ${grid_dir}
 fi
 
 echo "rsync -av ${source_dir}/swift.dkrz.de/example_data_r2b4/icon_grid_0036_R02B04_O ${grid_dir}"