diff --git a/generic/models.py b/generic/models.py
index e91f1a84..12c242af 100644
--- a/generic/models.py
+++ b/generic/models.py
@@ -239,10 +239,10 @@ class SeriesImageBase(models.Model):
         return info
 
     def generate_hashes(self):
-        #image_hash, is_dicom = get_image_hash(self.image, hash_type="md5", direct_pixel_data=False)
+        image_hash, is_dicom = get_image_hash(self.image, hash_type="md5", direct_pixel_data=False)
 
-        #self.is_dicom = is_dicom
-        #self.image_md5_hash = image_hash
+        self.is_dicom = is_dicom
+        self.image_md5_hash = image_hash
 
         image_blake3_hash, is_dicom = get_image_hash(self.image, hash_type="blake3", direct_pixel_data=True)
         self.is_dicom = is_dicom
diff --git a/helpers/images.py b/helpers/images.py
index a64db095..dab0f714 100644
--- a/helpers/images.py
+++ b/helpers/images.py
@@ -156,7 +156,8 @@ def print_dicom(dataset, indent=0, include_tag_ids=True):
 
 def get_image_dicom_hash(img, dataset=None, hash_type="md5", direct_pixel_data=True) -> (str, bool):
     if dataset is None:
-        dataset = pydicom.dcmread(img)
+        with pydicom.dcmread(img) as ds:
+            dataset = ds
 
     # TODO: improve?
     match hash_type: