1 files changed, 1 insertions, 1 deletions
diff --git a/README.md b/README.md
index aeeee3a..ac52d94 100644
--- a/README.md
+++ b/README.md
@@ -159,7 +159,7 @@ It is also possible to pack/unpack custom data types. Here is an example for
     }
 
     def decode_datetime(obj):
-        if b'__datetime__' in obj:
+        if '__datetime__' in obj:
             obj = datetime.datetime.strptime(obj["as_str"], "%Y%m%dT%H:%M:%S.%f")
         return obj