diff --git a/BHPD/01-DNN-Regression.ipynb b/BHPD/01-DNN-Regression.ipynb
index e00d427f28544e8c508f329e36d633f4a9b1382e..f8c7b290cbe78185b0c70055650e3383302f3fd2 100644
--- a/BHPD/01-DNN-Regression.ipynb
+++ b/BHPD/01-DNN-Regression.ipynb
@@ -132,7 +132,8 @@
     "sys.path.append('..')\n",
     "import fidle.pwk as ooo\n",
     "\n",
-    "ooo.init()"
+    "ooo.init()",
+    "os.makedirs('./run/',   mode=0o750, exist_ok=True)"
    ]
   },
   {