diff --git a/test/CodeGen/pointer-arithmetic.c b/test/CodeGen/pointer-arithmetic.c
index 6c644c6..6b4de91 100644
--- a/test/CodeGen/pointer-arithmetic.c
+++ b/test/CodeGen/pointer-arithmetic.c
@@ -3,3 +3,5 @@
 typedef int Int;
 
 int test1(int *a, Int *b) { return a - b; }
+
+int test2(const char *a, char *b) { return b - a; }