diff --git a/rapids/models.py b/rapids/models.py
index 1457cf96..015370c1 100644
--- a/rapids/models.py
+++ b/rapids/models.py
@@ -459,7 +459,10 @@ class RapidImage(models.Model):
             try:
                 # and generate a hash from the pixel data
                 dataset = pydicom.dcmread(self.image)
-                hash = hashlib.md5(",".join([str(i) for i in list(dataset.pixel_array.flatten())]).encode()).hexdigest()
+                print(dataset)
+                pre_join = [str(i) for i in list(dataset.pixel_array.flatten())]
+                print(pre_join)
+                hash = hashlib.md5(",".join(pre_join).encode()).hexdigest()
             
                 self.is_dicom = True
             except pydicom.errors.InvalidDicomError: