diff --git a/adapol/__init__.py b/src/adapol/__init__.py
similarity index 100%
rename from adapol/__init__.py
rename to src/adapol/__init__.py
diff --git a/adapol/aaa.py b/src/adapol/aaa.py
similarity index 100%
rename from adapol/aaa.py
rename to src/adapol/aaa.py
diff --git a/adapol/fit_utils.py b/src/adapol/fit_utils.py
similarity index 100%
rename from adapol/fit_utils.py
rename to src/adapol/fit_utils.py
diff --git a/adapol/matsubara.py b/src/adapol/matsubara.py
similarity index 100%
rename from adapol/matsubara.py
rename to src/adapol/matsubara.py