diff --git a/docs/source/optimize_interface.ipynb b/docs/source/optimize_interface.ipynb
index 55a03188..2dd686b0 100644
--- a/docs/source/optimize_interface.ipynb
+++ b/docs/source/optimize_interface.ipynb
@@ -1599,9 +1599,9 @@
    ],
    "source": [
     "# Define optimization problem setup\n",
+    "observed_params = [\"I_state\"]\n",
     "risk_bound = 3e5\n",
     "qoi = lambda y: obs_max_qoi(y, observed_params)\n",
-    "observed_params = [\"I_state\"]\n",
     "initial_guess_interventions = [0.35, 5.0]\n",
     "bounds_interventions = [[0.1, 1.0], [0.5, end_time_SEIRHD2]]\n",
     "\n",