diff --git a/test/DebugProtoTest.thrift b/test/DebugProtoTest.thrift
index 1ab0f6a..5d0face 100644
--- a/test/DebugProtoTest.thrift
+++ b/test/DebugProtoTest.thrift
@@ -245,6 +245,8 @@
   1: string msg;
 } (python.immutable = "false")
 
+exception ExceptionWithoutFields {}
+
 service ServiceForExceptionWithAMap {
   void methodThatThrowsAnException() throws (1: ExceptionWithAMap xwamap);
 }