diff --git a/micromagneticmodel/driver.py b/micromagneticmodel/driver.py
index 79a7147..151cc04 100644
--- a/micromagneticmodel/driver.py
+++ b/micromagneticmodel/driver.py
@@ -294,6 +294,9 @@ def _write_info_json(self, system, **kwargs):
         info["date"] = datetime.datetime.now().strftime("%Y-%m-%d")
         info["time"] = datetime.datetime.now().strftime("%H:%M:%S")
         info["driver"] = self.__class__.__name__
+        # "adapter" is the ubermag package (e.g. oommfc) that communicates with the
+        # calculator (e.g. OOMMF)
+        info["adapter"] = self.__module__.split(".")[0]
         for k, v in kwargs.items():
             info[k] = v
         with open("info.json", "wt", encoding="utf-8") as jsonfile:
diff --git a/micromagneticmodel/tests/test_driver.py b/micromagneticmodel/tests/test_driver.py
index 593b5d5..a1abf33 100644
--- a/micromagneticmodel/tests/test_driver.py
+++ b/micromagneticmodel/tests/test_driver.py
@@ -1,3 +1,6 @@
+import datetime
+import json
+
 import discretisedfield as df
 import pytest
 
@@ -66,6 +69,18 @@ def test_external_driver(tmp_path):
     assert system.m.allclose(-mm.examples.macrospin().m)
     assert (tmp_path / system.name / "drive-0" / "info.json").exists()
 
+    with open(tmp_path / system.name / "drive-0" / "info.json") as f:
+        info = json.load(f)
+
+    assert info["adapter"] == "micromagneticmodel"
+    assert info["driver"] == "MyExternalDriver"
+    assert info["drive_number"] == 0
+
+    info_time = datetime.datetime.fromisoformat(f"{info['date']}T{info['time']}")
+    now = datetime.datetime.now()
+    # assumption: this test runs in under one minute
+    assert (now - info_time).total_seconds() < 60
+
     with pytest.raises(FileExistsError):
         driver.drive(system, dirname=str(tmp_path), append=False)