diff --git a/garak/harnesses/base.py b/garak/harnesses/base.py
index aac2c98c9..5dbae02be 100644
--- a/garak/harnesses/base.py
+++ b/garak/harnesses/base.py
@@ -191,11 +191,15 @@ def run(self, model, probes, detectors, evaluator, announce_probe=True) -> None:
                 attempt_results, (list, types.GeneratorType)
             ), "probing should always return an ordered iterable"
 
+            probe_display_name = probe.probename.replace("garak.", "")
             for d in detectors:
                 logging.debug("harness: run detector %s", d.detectorname)
                 attempt_iterator = tqdm.tqdm(attempt_results, leave=False)
                 detector_probe_name = d.detectorname.replace("garak.detectors.", "")
-                attempt_iterator.set_description("detectors." + detector_probe_name)
+                # issue #324: include probe name in the detector progress bar
+                attempt_iterator.set_description(
+                    f"{probe_display_name}/detectors.{detector_probe_name}"
+                )
                 for attempt in attempt_iterator:
                     if d.skip:
                         continue
diff --git a/tests/harnesses/test_harnesses.py b/tests/harnesses/test_harnesses.py
index fee10ecac..faaece570 100644
--- a/tests/harnesses/test_harnesses.py
+++ b/tests/harnesses/test_harnesses.py
@@ -1,11 +1,14 @@
 # SPDX-FileCopyrightText: Copyright (c) 2024 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
 
-import pytest
 import importlib
+import tempfile
+
+import pytest
 
-from garak import _plugins
+from garak import _plugins, _config
 
+import garak.buffs.base
 import garak.harnesses.base
 
 HARNESSES = [
@@ -13,6 +16,22 @@
 ]
 
 
+@pytest.fixture(autouse=True)
+def _config_loaded():
+    """Load base config + a temp report file so harness.run() can write."""
+    _config.load_base_config()
+    _config.plugins.probes["test"]["generations"] = 1
+    temp_report_file = tempfile.NamedTemporaryFile(
+        mode="w+", suffix=".report.jsonl", delete=False
+    )
+    _config.transient.report_filename = temp_report_file.name
+    _config.transient.reportfile = open(
+        _config.transient.report_filename, "w", buffering=1, encoding="utf-8"
+    )
+
+    yield
+
+
 @pytest.mark.parametrize("classname", HARNESSES)
 def test_harness_structure(classname):
 
@@ -47,3 +66,42 @@ def test_harness_modality_match():
     assert garak.harnesses.base._modality_match(t, tvi, False) is True
     assert garak.harnesses.base._modality_match(ti, tvi, False) is True
     assert garak.harnesses.base._modality_match(t, ti, False) is True
+
+
+def test_harness_detector_progress_shows_probe_name(mocker, monkeypatch):
+    """Detector progress bar must show which probe is being processed (#324)."""
+    mocker.patch("garak.harnesses.base._initialize_runtime_services")
+
+    captured_descriptions = []
+    real_tqdm = garak.harnesses.base.tqdm.tqdm
+
+    def capturing_tqdm(*args, **kwargs):
+        bar = real_tqdm(*args, **kwargs)
+        original_set_description = bar.set_description
+
+        def set_description(desc, *a, **kw):
+            captured_descriptions.append(desc)
+            return original_set_description(desc, *a, **kw)
+
+        bar.set_description = set_description
+        return bar
+
+    monkeypatch.setattr(garak.harnesses.base.tqdm, "tqdm", capturing_tqdm)
+
+    harness = garak.harnesses.base.Harness()
+    model = _plugins.load_plugin("generators.test.Blank")
+    probe = _plugins.load_plugin("probes.test.Blank")
+    detector = _plugins.load_plugin("detectors.always.Pass")
+    monkeypatch.setattr(
+        _config.buffmanager,
+        "buffs",
+        [garak.buffs.base.Buff()],
+    )
+
+    harness.run(model, [probe], [detector], mocker.Mock())
+
+    assert captured_descriptions, "detector progress bar should have a description"
+    assert any(
+        "probes.test.Blank" in desc and "detectors.always.Pass" in desc
+        for desc in captured_descriptions
+    ), "detector progress description should include probe and detector names"