diff --git a/image_classifier/image_classifier.py b/image_classifier/image_classifier.py
index e6ce176..cb19bec 100755
--- a/image_classifier/image_classifier.py
+++ b/image_classifier/image_classifier.py
@@ -78,7 +78,6 @@ class image_classifier:
                         sys.stdout.write(self.exif_info[key])
             else:
                 self._log.debug("No exif info in the image.")
-                self.exif_info['APP1'] = ''
             self.append_people_to_exif(people)
             with open(file, 'wb') as new_image_file:
                 new_image_file.write(self.exif_info.get_file())
@@ -99,7 +98,7 @@ class image_classifier:
             data['PeopleDetected'] = list()
         for person in people:
             data['PeopleDetected'].append(person)
-        self.exif_info["user_comment"] = json.dumps(data)
+        self.exif_info.set("user_comment", json.dumps(data))
 
     def is_json(self, data):
         result = json.loads(data)