diff --git a/code/hash_example.py b/code/hash_example.py
index f2e6d2ec..14bb5a43 100644
--- a/code/hash_example.py
+++ b/code/hash_example.py
@@ -15,4 +15,4 @@ for nonce in range(20):
     hash_data = hashlib.sha256(input_data).hexdigest() 
     
     # show the input and hash result
-    print input_data, '=>',  hash_data 
+    print(input_data, '=>',  hash_data)