Fix typo in command name
diff --git a/Doc/distutils/setupscript.rst b/Doc/distutils/setupscript.rst
index 606ea0f..8029243 100644
--- a/Doc/distutils/setupscript.rst
+++ b/Doc/distutils/setupscript.rst
@@ -254,7 +254,7 @@
If you need to include header files from some other Python extension, you can
take advantage of the fact that header files are installed in a consistent way
-by the Distutils :command:`install_header` command. For example, the Numerical
+by the Distutils :command:`install_headers` command. For example, the Numerical
Python header files are installed (on a standard Unix installation) to
:file:`/usr/local/include/python1.5/Numerical`. (The exact location will differ
according to your platform and Python installation.) Since the Python include