diff --git a/src/HowBadIsMyBatch.ipynb b/src/HowBadIsMyBatch.ipynb
index 22cff90001f..c33921f7538 100644
--- a/src/HowBadIsMyBatch.ipynb
+++ b/src/HowBadIsMyBatch.ipynb
@@ -42,9 +42,8 @@
    "source": [
     "# split --bytes=45MiB VAERSBeforeDeletion.7z VAERSBeforeDeletion_\n",
     "def restoreVAERSBeforeDeletionFolder():\n",
-    "    from IPython import get_ipython\n",
-    "    !cat data/VAERSBeforeDeletion/VAERSBeforeDeletion_* > VAERS/VAERSBeforeDeletion.7z\n",
-    "    !cd VAERS; 7z x -y VAERSBeforeDeletion.7z\n",
+    "    os.system('cat data/VAERSBeforeDeletion/VAERSBeforeDeletion_* > VAERS/VAERSBeforeDeletion.7z')\n",
+    "    os.system('cd VAERS; 7z x -y VAERSBeforeDeletion.7z')\n",
     "\n",
     "vaersBeforeDeletionDataDir = 'VAERS/VAERSBeforeDeletion'\n",
     "restoreVAERSBeforeDeletionFolder()"