diff --git a/my/location/google_takeout.py b/my/location/google_takeout.py
index 80b31cb..a1c1403 100644
--- a/my/location/google_takeout.py
+++ b/my/location/google_takeout.py
@@ -23,7 +23,12 @@ def locations() -> Iterator[Location]:
     for g in events():
         if isinstance(g, GoogleLocation):
             yield Location(
-                lon=g.lng, lat=g.lat, dt=g.dt, accuracy=g.accuracy, elevation=None
+                lon=g.lng,
+                lat=g.lat,
+                dt=g.dt,
+                accuracy=g.accuracy,
+                elevation=None,
+                datasource="google_takeout",
             )
 
 
diff --git a/my/location/gpslogger.py b/my/location/gpslogger.py
index 95f4474..0cd56b3 100644
--- a/my/location/gpslogger.py
+++ b/my/location/gpslogger.py
@@ -65,6 +65,7 @@ def _extract_locations(path: Path) -> Iterator[Location]:
                         accuracy=config.accuracy,
                         elevation=point.elevation,
                         dt=datetime.replace(point.time, tzinfo=timezone.utc),
+                        datasource="gpslogger",
                     )