diff --git a/test/Analysis/stack-addr-ps.c b/test/Analysis/stack-addr-ps.c
index b1214ef..668df5b 100644
--- a/test/Analysis/stack-addr-ps.c
+++ b/test/Analysis/stack-addr-ps.c
@@ -1,9 +1,12 @@
-// RUN: clang -analyze -checker-simple -verify %s &&
-// RUN: clang -analyze -checker-cfref -analyzer-store=basic -verify %s &&
-// RUN: clang -analyze -checker-cfref -analyzer-store=region -verify %s
+// RUN: clang -analyze -checker-simple -verify -I../../../include %s &&
+// RUN: clang -analyze -checker-cfref -analyzer-store=basic -verify -I../../../include %s &&
+// RUN: clang -analyze -checker-cfref -analyzer-store=region -verify -I../../../include %s
 
 #include <stdlib.h>
-#include <alloca.h>
+#include <llvm/Config/config.h>
+#ifdef HAVE_ALLOCA_H
+# include <alloca.h>
+#endif
 
 int* f1() {
   int x = 0;