diff --git a/book/chapters/development.ipynb b/book/chapters/development.ipynb
index b6afd01..8ba978b 100644
--- a/book/chapters/development.ipynb
+++ b/book/chapters/development.ipynb
@@ -7,7 +7,7 @@
     "tags": []
    },
    "source": [
-    "# Model Development and Paramter Tuning\n",
+    "# Model Development and Parameter Tuning\n",
     "\n",
     "Explain the effects of parameter tuning and how it was performed. If you used a tool to perform automatic tuning , explaing that as well. If it is the case, explain model under or over fitting and the consequences.\n"
    ]