diff --git a/notebooks/DynamicFF/Characterize_DynamicFF_NBC.ipynb b/notebooks/DynamicFF/Characterize_DynamicFF_NBC.ipynb
index 80738f3d16a326975eee632cd1230f2eed55ccdd..0792119bf06af18e6d606ed58ae9ff582043fbed 100644
--- a/notebooks/DynamicFF/Characterize_DynamicFF_NBC.ipynb
+++ b/notebooks/DynamicFF/Characterize_DynamicFF_NBC.ipynb
@@ -198,7 +198,7 @@
    "outputs": [],
    "source": [
     "flat_run = run_low\n",
-    "dark_creation_time = calcat_creation_time(in_folder, dark_run, creation_time)\n",
+    "flat_creation_time = calcat_creation_time(in_folder, flat_run, creation_time)\n",
     "print(f\"Using {flat_creation_time} as creation time of DynamicFF constant.\")\n",
     "\n",
     "for da, meta in modules.items():\n",