diff --git a/test/C++Frontend/2003-08-21-EmptyClass.cpp b/test/C++Frontend/2003-08-21-EmptyClass.cpp
index 4951871b827..34629d1a4c9 100644
--- a/test/C++Frontend/2003-08-21-EmptyClass.cpp
+++ b/test/C++Frontend/2003-08-21-EmptyClass.cpp
@@ -2,6 +2,6 @@
 
 struct empty {};
 
-void foo(empty E);
+void foo(empty) {}
 
 void bar() { foo(empty()); }