diff --git a/test/DebugProtoTest.thrift b/test/DebugProtoTest.thrift
index fb16982..4e9fb47 100644
--- a/test/DebugProtoTest.thrift
+++ b/test/DebugProtoTest.thrift
@@ -364,4 +364,8 @@
   optional i32 field10;
   optional i32 field11;
   optional i32 field12;
-}
\ No newline at end of file
+}
+
+struct ListDoublePerf {
+  1: list<double> field;
+}