diff --git a/image_classifier/image_classifier.py b/image_classifier/image_classifier.py
index cd0687a..c4790b7 100755
--- a/image_classifier/image_classifier.py
+++ b/image_classifier/image_classifier.py
@@ -17,6 +17,7 @@ from logging.handlers import SysLogHandler
 import face_recognition
 import pyexiv2
 import PIL
+import cv2
 
 class CustomFormatter(logging.Formatter):
     """Logging colored formatter, adapted from https://stackoverflow.com/a/56944256/3638629"""
@@ -176,7 +177,7 @@ class image_classifier:
 
     def is_image(self, file):
         try:
-            im = PIL.Image.open(file)
+            image_object = PIL.Image.open(file)
         except PIL.UnidentifiedImageError as error:
             self._log.debug(f"File '{file}' is not an image recognizable by PIL. {error}")
             return False