diff --git a/config.pbtxt b/config.pbtxt
index b51f053..0b3b113 100644
--- a/config.pbtxt
+++ b/config.pbtxt
@@ -12,6 +12,11 @@ input [
     name: "modi"
     data_type: TYPE_STRING
     dims: [ -1 ]
+  },
+  {
+    name: "prev-regi"
+    data_type: TYPE_STRING
+    dims: [ -1 ]
   }
 ]