diff --git a/your-first-python-program.html b/your-first-python-program.html
index f2f340c..53efe24 100755
--- a/your-first-python-program.html
+++ b/your-first-python-program.html
@@ -87,7 +87,7 @@ if __name__ == '__main__':
 
 <h3 id=optional-arguments>Optional and Named Arguments</h3>
 
-<p>Python allows function arguments to have default values; if the function is called without the argument, the argument gets its default value. Futhermore, arguments can be specified in any order by using named arguments.
+<p>Python allows function arguments to have default values; if the function is called without the argument, the argument gets its default value. Furthermore, arguments can be specified in any order by using named arguments.
 
 <p>Let&#8217;s take another look at that <code>approximate_size()</code> function declaration: