diff --git a/openflexure_microscope/api/default_extensions/picamera_autocalibrate/recalibrate_utils.py b/openflexure_microscope/api/default_extensions/picamera_autocalibrate/recalibrate_utils.py
index dbbd78ba..05a5404c 100644
--- a/openflexure_microscope/api/default_extensions/picamera_autocalibrate/recalibrate_utils.py
+++ b/openflexure_microscope/api/default_extensions/picamera_autocalibrate/recalibrate_utils.py
@@ -1,5 +1,6 @@
 import numpy as np
 import time
+import logging
 
 from picamera import PiCamera
 from picamera.array import PiRGBArray, PiBayerArray