diff --git a/CHANGES/9552.packaging.rst b/CHANGES/9552.packaging.rst
new file mode 120000
index 00000000000..c9dc8a14683
--- /dev/null
+++ b/CHANGES/9552.packaging.rst
@@ -0,0 +1 @@
+9542.packaging.rst
\ No newline at end of file
diff --git a/setup.cfg b/setup.cfg
index a26d472b22a..6408dde39bd 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -43,7 +43,9 @@ classifiers =
 
 [options]
 python_requires = >=3.9
-packages = aiohttp
+packages =
+  aiohttp
+  aiohttp._websocket
 # https://setuptools.readthedocs.io/en/latest/setuptools.html#setting-the-zip-safe-flag
 zip_safe = False
 include_package_data = True