diff --git a/rapids/models.py b/rapids/models.py
index 015370c1..329b3fcd 100644
--- a/rapids/models.py
+++ b/rapids/models.py
@@ -460,7 +460,9 @@ class RapidImage(models.Model):
                 # and generate a hash from the pixel data
                 dataset = pydicom.dcmread(self.image)
                 print(dataset)
-                pre_join = [str(i) for i in list(dataset.pixel_array.flatten())]
+                flatten = dataset.pixel_array.flatten()
+                print("flatteded")
+                pre_join = [str(i) for i in list(flatten)]
                 print(pre_join)
                 hash = hashlib.md5(",".join(pre_join).encode()).hexdigest()