diff --git a/src/pip/_internal/distributions/__init__.py b/src/pip/_internal/distributions/__init__.py
index fdf332a81..12b6831ee 100644
--- a/src/pip/_internal/distributions/__init__.py
+++ b/src/pip/_internal/distributions/__init__.py
@@ -1,4 +1,4 @@
-from pip._internal.distributions.source import SourceDistribution
+from pip._internal.distributions.source.legacy import SourceDistribution
 from pip._internal.distributions.wheel import WheelDistribution
 
 from pip._internal.utils.typing import MYPY_CHECK_RUNNING
diff --git a/src/pip/_internal/distributions/source/__init__.py b/src/pip/_internal/distributions/source/__init__.py
new file mode 100644
index 000000000..e69de29bb
diff --git a/src/pip/_internal/distributions/source.py b/src/pip/_internal/distributions/source/legacy.py
similarity index 100%
rename from src/pip/_internal/distributions/source.py
rename to src/pip/_internal/distributions/source/legacy.py