diff --git a/test/ThriftTest.thrift b/test/ThriftTest.thrift
index 9056465..a549fa7 100644
--- a/test/ThriftTest.thrift
+++ b/test/ThriftTest.thrift
@@ -90,6 +90,9 @@
   /* Multiple exceptions specifier */
 
   Xtruct testMultiException(string arg0, string arg1) throws(Xception err1, Xception2 err2)
+
+  /* Test async void */
+  async void testAsync(1:i32 secondsToSleep)
 }
 
 service SecondService