diff --git a/test/Analysis/stack-addr-ps.c b/test/Analysis/stack-addr-ps.c
index 3516fee..3ee2063 100644
--- a/test/Analysis/stack-addr-ps.c
+++ b/test/Analysis/stack-addr-ps.c
@@ -3,10 +3,6 @@
 // RUN: clang -analyze -checker-cfref -analyzer-store=region -verify %s
 
 #include <stdlib.h>
-#include "../../../../include/llvm/Config/config.h"
-#ifdef HAVE_ALLOCA_H
-# include <alloca.h>
-#endif
 
 int* f1() {
   int x = 0;
@@ -42,7 +38,7 @@
 }
 
 void* alloca_test() {
-  void* p = alloca(10);
+  void* p = __builtin_alloca(10);
   return p; // expected-warning{{Address of stack memory}}
 }