diff --git a/msgpack_reader.go b/msgpack_reader.go
index 74239d0..f76a354 100644
--- a/msgpack_reader.go
+++ b/msgpack_reader.go
@@ -461,6 +461,7 @@ func (rd *msgpackReader) BeginContainer(targetField string) error {
 			return errors.WithStack(err)
 		}
 		rd.curr.values[field] = raw
+		rd.curr.readCnt = i + 1
 	}
 
 	return FieldNotFound