diff --git a/code/url-analyzer.ipynb b/code/url-analyzer.ipynb
index 4a0719a..f8fe8a7 100644
--- a/code/url-analyzer.ipynb
+++ b/code/url-analyzer.ipynb
@@ -4,7 +4,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "# URL domain regisrtrar variation analysis\n",
+    "# URL domain registrar variation analysis\n",
     "\n",
     "Author: Pekka Helenius, 2021\n",
     "\n",