diff --git a/doc/extdev/markupapi.rst b/doc/extdev/markupapi.rst
index 97abc17b9..ffa08cae7 100644
--- a/doc/extdev/markupapi.rst
+++ b/doc/extdev/markupapi.rst
@@ -124,7 +124,7 @@ Both APIs parse the content into a given node. They are used like this::
 .. note::
 
    ``sphinx.util.docutils.switch_source_input()`` allows to change a target file
-   during nested_parse.  It is useful to mixture contents.  For example, ``sphinx.
+   during nested_parse.  It is useful to mixed contents.  For example, ``sphinx.
    ext.autodoc`` uses it to parse docstrings::
 
        from sphinx.util.docutils import switch_source_input