diff --git a/kombu/utils/encoding.py b/kombu/utils/encoding.py
index 93788bde..551cf5f3 100644
--- a/kombu/utils/encoding.py
+++ b/kombu/utils/encoding.py
@@ -53,7 +53,7 @@ if PY3:  # pragma: no cover
     def bytes_to_str(s):
         """Convert bytes to str."""
         if isinstance(s, bytes):
-            return s.decode()
+            return s.decode(errors='replace')
         return s
 
     def from_utf8(s, *args, **kwargs):