diff --git a/config.json b/config.json
index 3b85c79..1019621 100644
--- a/config.json
+++ b/config.json
@@ -14,6 +14,6 @@
   "output_attentions": false,
   "output_hidden_states": false,
   "torchscript": false,
-  "type_vocab_size": 1,
+  "type_vocab_size": 2,
   "vocab_size": 50265
 }