diff --git a/tests/test_weeding.py b/tests/test_weeding.py
index ac303993..5bdf4c6f 100644
--- a/tests/test_weeding.py
+++ b/tests/test_weeding.py
@@ -9,7 +9,7 @@
 async def test_working_with_weeding_screw(system: System, detector: rosys.vision.DetectorSimulation):
     detector.simulated_objects.append(rosys.vision.SimulatedObject(category_name='maize',
                                                                    position=rosys.geometry.Point3d(x=0.2, y=0.0, z=0)))
-    detector.simulated_objects.append(rosys.vision.SimulatedObject(category_name='thistle',
+    detector.simulated_objects.append(rosys.vision.SimulatedObject(category_name='big_weed',
                                                                    position=rosys.geometry.Point3d(x=0.2, y=0.05, z=0)))
     system.current_implement = system.implements['Weed Screw']
     system.current_navigation = system.straight_line_navigation
@@ -22,7 +22,7 @@ async def test_working_with_weeding_screw(system: System, detector: rosys.vision
 async def test_keep_crops_safe(system: System, detector: rosys.vision.DetectorSimulation):
     detector.simulated_objects.append(rosys.vision.SimulatedObject(category_name='maize',
                                                                    position=rosys.geometry.Point3d(x=0.2, y=0.0, z=0)))
-    detector.simulated_objects.append(rosys.vision.SimulatedObject(category_name='thistle',
+    detector.simulated_objects.append(rosys.vision.SimulatedObject(category_name='big_weed',
                                                                    position=rosys.geometry.Point3d(x=0.2, y=system.field_friend.DRILL_RADIUS-0.01, z=0)))
     system.current_implement = system.implements['Weed Screw']
     system.current_navigation = system.straight_line_navigation
@@ -36,7 +36,7 @@ async def test_keep_crops_safe(system: System, detector: rosys.vision.DetectorSi
 async def test_weeding_screw_only_targets_big_weed(system: System, detector: rosys.vision.DetectorSimulation):
     detector.simulated_objects.append(rosys.vision.SimulatedObject(category_name='weed',
                                                                    position=rosys.geometry.Point3d(x=0.2, y=0.0, z=0)))
-    detector.simulated_objects.append(rosys.vision.SimulatedObject(category_name='thistle',
+    detector.simulated_objects.append(rosys.vision.SimulatedObject(category_name='big_weed',
                                                                    position=rosys.geometry.Point3d(x=0.15, y=0, z=0)))
     system.current_implement = system.implements['Weed Screw']
     system.current_navigation = system.straight_line_navigation
@@ -47,9 +47,9 @@ async def test_weeding_screw_only_targets_big_weed(system: System, detector: ros
 
 
 async def test_weeding_screw_does_not_skip_close_weed(system: System, detector: rosys.vision.DetectorSimulation):
-    detector.simulated_objects.append(rosys.vision.SimulatedObject(category_name='thistle',
+    detector.simulated_objects.append(rosys.vision.SimulatedObject(category_name='big_weed',
                                                                    position=rosys.geometry.Point3d(x=0.2, y=0, z=0)))
-    detector.simulated_objects.append(rosys.vision.SimulatedObject(category_name='thistle',
+    detector.simulated_objects.append(rosys.vision.SimulatedObject(category_name='big_weed',
                                                                    position=rosys.geometry.Point3d(x=0.2+system.field_friend.DRILL_RADIUS-0.01, y=0.05, z=0)))
     system.current_implement = system.implements['Weed Screw']
     system.current_navigation = system.straight_line_navigation
@@ -61,9 +61,9 @@ async def test_weeding_screw_does_not_skip_close_weed(system: System, detector:
 async def test_weeding_screw_focus_on_weed_close_to_crop(system: System, detector: rosys.vision.DetectorSimulation):
     detector.simulated_objects.append(rosys.vision.SimulatedObject(category_name='maize',
                                                                    position=rosys.geometry.Point3d(x=0.2, y=0.0, z=0)))
-    detector.simulated_objects.append(rosys.vision.SimulatedObject(category_name='thistle',
+    detector.simulated_objects.append(rosys.vision.SimulatedObject(category_name='big_weed',
                                                                    position=rosys.geometry.Point3d(x=0.1, y=0, z=0)))
-    detector.simulated_objects.append(rosys.vision.SimulatedObject(category_name='thistle',
+    detector.simulated_objects.append(rosys.vision.SimulatedObject(category_name='big_weed',
                                                                    position=rosys.geometry.Point3d(x=0.16, y=0, z=0)))
     system.current_implement = system.implements['Weed Screw']
     system.current_navigation = system.straight_line_navigation
@@ -73,7 +73,7 @@ async def test_weeding_screw_focus_on_weed_close_to_crop(system: System, detecto
     system.automator.start()
     await forward(40)
     assert len(detector.simulated_objects) == 2
-    assert detector.simulated_objects[1].category_name == 'thistle'
+    assert detector.simulated_objects[1].category_name == 'big_weed'
     assert detector.simulated_objects[1].position.x == 0.1