diff --git a/artiq/examples/artiq_ipython_notebook.ipynb b/artiq/examples/artiq_ipython_notebook.ipynb
index 1d6026090..d88cd8b94 100644
--- a/artiq/examples/artiq_ipython_notebook.ipynb
+++ b/artiq/examples/artiq_ipython_notebook.ipynb
@@ -272,7 +272,7 @@
     "\n",
     "with h5py.File(glob.glob(f)[0]) as f:\n",
     "    print(\"available datasets\", list(f))\n",
-    "    assert np.allclose(f[\"flopping_f_brightness\"], d)"
+    "    assert np.allclose(f[\"datasets/flopping_f_brightness\"], d)"
    ]
   },
   {