diff --git a/notebooks/ref_data_compare_from_paths.ipynb b/notebooks/ref_data_compare_from_paths.ipynb
index 8ad24ef7..037e1fa3 100644
--- a/notebooks/ref_data_compare_from_paths.ipynb
+++ b/notebooks/ref_data_compare_from_paths.ipynb
@@ -9,7 +9,6 @@
     "import os\n",
     "import sys\n",
     "import shutil\n",
-    "import tempfile\n",
     "import subprocess\n",
     "import numpy as np\n",
     "import pandas as pd\n",
@@ -456,6 +455,22 @@
     "                 tmp2['/test_runner_simple/spectrum_virtual/_frequency'][:-1], \n",
     "                 tmp2['/test_runner_simple/spectrum_virtual/luminosity'])"
    ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "if False in tt.match.values or None in tt.match.values:\n",
+    "    print(\"Reference files do not match, setting contents of tmp file to zero.\")\n",
+    "    with open('refdata_compare_result', 'w+') as fh:\n",
+    "        fh.write('REFDATA COMPARISON FAILED')\n",
+    "else:\n",
+    "    print(\"Reference files match.\")\n",
+    "    with open('refdata_compare_result', 'w+') as fh:\n",
+    "        fh.write('REFDATA COMPARISON SUCCEEDED')   "
+   ]
   }
  ],
  "metadata": {