diff --git a/satsim/modules/__init__.py b/satsim/modules/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/satsim/gamma.py b/satsim/modules/gamma.py
similarity index 100%
rename from satsim/gamma.py
rename to satsim/modules/gamma.py
diff --git a/satsim/heartbeat.py b/satsim/modules/heartbeat.py
similarity index 100%
rename from satsim/heartbeat.py
rename to satsim/modules/heartbeat.py
diff --git a/satsim/location.py b/satsim/modules/location.py
similarity index 100%
rename from satsim/location.py
rename to satsim/modules/location.py
diff --git a/satsim/module.py b/satsim/modules/module.py
similarity index 100%
rename from satsim/module.py
rename to satsim/modules/module.py