diff --git a/photo_importer/run.py b/photo_importer/run.py
index c3e5407..c38b1fb 100755
--- a/photo_importer/run.py
+++ b/photo_importer/run.py
@@ -25,7 +25,7 @@ class ProgressBar(threading.Thread):
             self.__pbar = None
 
         self.__pbar = progressbar.ProgressBar(
-            max_value=count,
+            maxval=count,
             widgets=[
                 name,
                 ' ',