diff --git a/test/cpp/0001-define2.c b/test/cpp/0001-define2.c
index c13d085..857b8c8 100644
--- a/test/cpp/0001-define2.c
+++ b/test/cpp/0001-define2.c
@@ -1,11 +1,13 @@
 #define x x
 
+#define SUM 0 
 int
 main()
 {
 	int x;
 
 	x = 0;
+	printf("SUM = %d", SUM);
 	return x;
 }