diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9140c49..950f82a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,7 @@
 #### :wrench: Fix
 
 1. Fix: Remove an unexpected in-release package `version` which should only appear during the package building.
+2. Find a way to include `tests.version` in `sdist` but exclude all `tests` codes in `wheel`.
 
 #### :floppy_disk: Change
 
diff --git a/MANIFEST.in b/MANIFEST.in
new file mode 100644
index 0000000..16b52e4
--- /dev/null
+++ b/MANIFEST.in
@@ -0,0 +1 @@
+include tests/*.py
diff --git a/setup.cfg b/setup.cfg
index b896725..701892a 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,6 +1,6 @@
 [metadata]
 name = syncstream
-version = attr: version.__version__
+version = attr: tests.version.__version__
 description = A python tool for synchronize the messages from different threads, processes or hosts.
 long_description = file: README.md
 long_description_content_type = text/markdown
diff --git a/version/__init__.py b/tests/version.py
similarity index 100%
rename from version/__init__.py
rename to tests/version.py