diff --git a/config.json b/config.json
index ae22cc1..db8b75f 100644
--- a/config.json
+++ b/config.json
@@ -11,7 +11,7 @@
   "hidden_dropout_prob": 0.1,
   "hidden_size": 768,
   "id2label": {
-    "0": "0",
+    "0": "O",
     "1": "VENDOR",
   	"2": "DATE",
   	"3": "HCW",
@@ -24,7 +24,7 @@
   "intermediate_size": 3072,
   "is_decoder": false,
   "label2id": {
-    "0": 0,
+    "O": 0,
     "VENDOR": 1,
   	"DATE": 2,
   	"HCW": 3,