diff --git a/MANIFEST.in b/MANIFEST.in
index 0643e7ee2d..791ab8d352 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -3,6 +3,7 @@ recursive-include tests *.py
 recursive-include setuptools/tests *.html
 recursive-include docs *.py *.txt *.rst *.conf *.css *.css_t Makefile indexsidebar.html
 recursive-include setuptools/_vendor *
+recursive-include setuptools/_distutils/_vendor *
 recursive-include pkg_resources *.py *.txt
 recursive-include pkg_resources/tests/data *
 recursive-include tools *
diff --git a/newsfragments/4622.bugfix.rst b/newsfragments/4622.bugfix.rst
new file mode 100644
index 0000000000..fb83eacb35
--- /dev/null
+++ b/newsfragments/4622.bugfix.rst
@@ -0,0 +1 @@
+Include all vendored files from distutils in the sdist as well.