diff --git a/imagedephi/modify_dates_rules.yaml b/imagedephi/modify_dates_rules.yaml
index a76328e2..09bcf651 100644
--- a/imagedephi/modify_dates_rules.yaml
+++ b/imagedephi/modify_dates_rules.yaml
@@ -810,6 +810,8 @@ svs:
       action: keep
     CalibrationAverageRed:
       action: keep
+    Calibration Point Source:
+      action: keep
     ScannerType:
       action: delete
     SessionMode:
@@ -824,7 +826,7 @@ dicom:
       action: delete
     default:
       action: keep
-  delete_custom_metadata: true
+  custom_metadata_action: delete
   metadata:
     AccessionNumber:
       action: empty
diff --git a/tests/test_profile_rules.py b/tests/test_profile_rules.py
new file mode 100644
index 00000000..248abbf7
--- /dev/null
+++ b/tests/test_profile_rules.py
@@ -0,0 +1,34 @@
+import importlib.resources
+from typing import Any
+
+import yaml
+
+
+def _load_profile(file_name: str) -> dict:
+    with (importlib.resources.files("imagedephi") / file_name).open() as stream:
+        return yaml.safe_load(stream)
+
+
+def _profile_differences(base: Any, other: Any, path: str = "") -> list[str]:
+    """List places where the modify dates profile deviates from the base profile."""
+    if isinstance(base, dict) and isinstance(other, dict):
+        differences = [f"{path}/{key}: only in base rules" for key in base.keys() - other.keys()]
+        differences += [
+            f"{path}/{key}: only in modify dates rules" for key in other.keys() - base.keys()
+        ]
+        for key in base.keys() & other.keys():
+            differences += _profile_differences(base[key], other[key], f"{path}/{key}")
+        return differences
+    if base == other or (path.endswith("/action") and other == "modify_date"):
+        return []
+    return [f"{path}: {base!r} != {other!r}"]
+
+
+def test_modify_dates_profile_matches_base_profile():
+    base = _load_profile("base_rules.yaml")
+    modify_dates = _load_profile("modify_dates_rules.yaml")
+    for key in ("name", "description"):
+        base.pop(key)
+        modify_dates.pop(key)
+
+    assert sorted(_profile_differences(base, modify_dates)) == []