diff --git a/process_new.ipynb b/process_new.ipynb
index c30756c..266deba 100644
--- a/process_new.ipynb
+++ b/process_new.ipynb
@@ -163,7 +163,7 @@
     "        # Loop over files\n",
     "        for fname in fnames:\n",
     "            # Create reference calibration file in single threaded environment\n",
-    "            calfname = os.path.join(\"test.fits\")\n",
+    "            calfname = os.path.join(file_dir, \"test.fits\")\n",
     "\n",
     "            if not os.path.exists(calfname):\n",
     "                solved = False\n",