diff --git a/rapids/models.py b/rapids/models.py
index 9c03cac7..c2e87873 100644
--- a/rapids/models.py
+++ b/rapids/models.py
@@ -466,10 +466,20 @@ class RapidImage(models.Model):
                 #pre_join = ",".join(flatten)
                 #print(pre_join)
                 #hash = hashlib.md5(pre_join.encode()).hexdigest()
+                #----
+                #md5 = hashlib.md5()
+                #for i in dataset.pixel_array.flatten():
+                #    md5.update(f"{str(i)},".encode())
+                #print(0)
+
+                #hash = md5.hexdigest()
+                #----
                 md5 = hashlib.md5()
-                for i in dataset.pixel_array.flatten():
-                    md5.update(f"{str(i)},".encode())
-                print(0)
+                flat_array = list(dataset.pixel_array.astype(str).flatten())
+                last_el = flat_array.pop()
+                for i in flat_array:
+                    md5.update(f"{i},".encode())
+                md5.update(last_el.encode())
 
                 hash = md5.hexdigest()