diff --git a/notebooks/Synergistic/BrainWeb-single_slice_motion.ipynb b/notebooks/Synergistic/BrainWeb-single_slice_motion.ipynb
index a9126fe8..cbc3f093 100644
--- a/notebooks/Synergistic/BrainWeb-single_slice_motion.ipynb
+++ b/notebooks/Synergistic/BrainWeb-single_slice_motion.ipynb
@@ -105,7 +105,7 @@
    "source": [
     "data_path = path.join(examples_data_path('Synergistic'), 'brainweb_single_slice')\n",
     "if not path.isdir(data_path):\n",
-    "    os.makedirs(data_path, exist_ok=True)\n",
+    "    os.makedirs(data_path)\n",
     "os.chdir(data_path)\n",
     "\n",
     "fname, url= sorted(brainweb.utils.LINKS.items())[0]\n",
diff --git a/notebooks/Synergistic/BrainWeb.ipynb b/notebooks/Synergistic/BrainWeb.ipynb
index 11703511..620f34c0 100644
--- a/notebooks/Synergistic/BrainWeb.ipynb
+++ b/notebooks/Synergistic/BrainWeb.ipynb
@@ -102,7 +102,7 @@
    "source": [
     "data_path = path.join(examples_data_path('Synergistic'), 'brainweb')\n",
     "if not path.isdir(data_path):\n",
-    "    os.makedirs(data_path, exist_ok=True)\n",
+    "    os.makedirs(data_path)\n",
     "os.chdir(data_path)\n",
     "\n",
     "fname, url= sorted(brainweb.utils.LINKS.items())[0]\n",