diff --git a/longs/views.py b/longs/views.py
index a9320a9d..07d8b577 100755
--- a/longs/views.py
+++ b/longs/views.py
@@ -1047,6 +1047,6 @@ class SeriesImagesZipView(BaseZipView):
     """Download all images from an image series"""
 
     def get_files(self):
-        series = LongSeries.objects.get(pk=self.request.pk)
+        series = LongSeries.objects.get(pk=self.kwargs['pk'])
 
         return [i.file for i in series.images]
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