diff --git a/src/thrift/parquet.thrift b/src/thrift/parquet.thrift
index 79e3fc5..5512153 100644
--- a/src/thrift/parquet.thrift
+++ b/src/thrift/parquet.thrift
@@ -151,7 +151,7 @@
   /** When the original schema supports field ids, this will save the
    * original field id in the parquet schema
    */
-  8: optional i32 field_id;
+  9: optional i32 field_id;
 
 }