diff --git a/test/ThriftTest.thrift b/test/ThriftTest.thrift
index 7049d51..3faaa6a 100644
--- a/test/ThriftTest.thrift
+++ b/test/ThriftTest.thrift
@@ -113,6 +113,7 @@
 
 struct VersioningTestV1 {
        1: i32 begin_in_both,
+       3: string old_string,
        12: i32 end_in_both
 }