diff --git a/openflexure_microscope/plugins/default/camera_calibration/plugin.py b/openflexure_microscope/plugins/default/camera_calibration/plugin.py
index a6549c98..5b942ab8 100644
--- a/openflexure_microscope/plugins/default/camera_calibration/plugin.py
+++ b/openflexure_microscope/plugins/default/camera_calibration/plugin.py
@@ -15,7 +15,7 @@ from .recalibrate_utils import recalibrate_camera, auto_expose_and_freeze_settin
 class RecalibrateAPIView(MicroscopeViewPlugin):
     def post(self):
         logging.info("Starting microscope recalibration...")
-        task = taskify(self.plugin.recalibrate)
+        task = taskify(self.plugin.recalibrate)()
 
         # Return a handle on the autofocus task
         return jsonify(task.state), 202