diff --git a/steam/util/web.py b/steam/util/web.py
index 33c4934..4d042ba 100644
--- a/steam/util/web.py
+++ b/steam/util/web.py
@@ -21,4 +21,4 @@ def generate_session_id():
     :returns: session id
     :rtype: :class:`str`
     """
-    return hexlify(sha1_hash(random_bytes(32)))[:32]
+    return hexlify(sha1_hash(random_bytes(32)))[:32].decode('ascii')