diff --git a/qualtran/bloqs/factoring/ecc/ecc.ipynb b/qualtran/bloqs/factoring/ecc/ecc.ipynb
index 0818bb895..33e82abca 100644
--- a/qualtran/bloqs/factoring/ecc/ecc.ipynb
+++ b/qualtran/bloqs/factoring/ecc/ecc.ipynb
@@ -111,7 +111,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 3,
+   "execution_count": null,
    "id": "6cb48b0a-44c8-40e5-ba1e-d0b3a0745046",
    "metadata": {},
    "outputs": [],