fix spelling
diff --git a/Doc/tutorial/controlflow.rst b/Doc/tutorial/controlflow.rst
index 3fac848..4fa9858 100644
--- a/Doc/tutorial/controlflow.rst
+++ b/Doc/tutorial/controlflow.rst
@@ -445,8 +445,8 @@
 up in a tuple.  Before the variable number of arguments, zero or more normal
 arguments may occur. ::
 
-   def write_multiple_items(file, seperator, *args):
-       file.write(seperator.join(args))
+   def write_multiple_items(file, separator, *args):
+       file.write(separator.join(args))
 
 
 .. _tut-unpacking-arguments: