diff --git a/dev_tools/costing-report-card.ipynb b/dev_tools/costing-report-card.ipynb
index 97a9a988c..73fc9724b 100644
--- a/dev_tools/costing-report-card.ipynb
+++ b/dev_tools/costing-report-card.ipynb
@@ -179,11 +179,22 @@
    "outputs": [],
    "source": [
     "from qualtran.drawing import show_call_graph\n",
-    "be = get_bloq_example('hubbard_time_evolution_by_gqsp')\n",
+    "be = get_bloq_example('modexp_small')\n",
     "bloq = be.make()\n",
     "show_call_graph(bloq, max_depth=1)"
    ]
   },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "8b27557c-4806-4041-b9ae-7eb28b908bce",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import logging\n",
+    "logging.basicConfig(level=logging.INFO)"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": null,
diff --git a/qualtran/bloqs/factoring/mod_exp.py b/qualtran/bloqs/factoring/mod_exp.py
index cabc6e0bd..7e2ab73c9 100644
--- a/qualtran/bloqs/factoring/mod_exp.py
+++ b/qualtran/bloqs/factoring/mod_exp.py
@@ -145,7 +145,7 @@ def _generalize_k(b: Bloq) -> Optional[Bloq]:
 
 @bloq_example(generalizer=(ignore_split_join, _generalize_k))
 def _modexp_small() -> ModExp:
-    modexp_small = ModExp(base=3, mod=15, exp_bitsize=3, x_bitsize=2048)
+    modexp_small = ModExp(base=4, mod=15, exp_bitsize=3, x_bitsize=2048)
     return modexp_small