diff --git a/config.json b/config.json
index 6cc3c51..6a3ff99 100644
--- a/config.json
+++ b/config.json
@@ -1,5 +1,5 @@
 {
-  "model_type": bert,
+  "model_type": "bert",
   "attention_probs_dropout_prob": 0.1,
   "hidden_act": "gelu",
   "hidden_dropout_prob": 0.1,