diff --git a/compiler-rt/test/lsan/TestCases/Linux/guard-page.c b/compiler-rt/test/lsan/TestCases/Linux/guard-page.c
--- a/compiler-rt/test/lsan/TestCases/Linux/guard-page.c
+++ b/compiler-rt/test/lsan/TestCases/Linux/guard-page.c
@@ -36,11 +36,11 @@
 
   if (getcontext(&ctx) < 0)
     die("getcontext", 0);
-  stack = malloc(1 << 11);
+  stack = malloc(1 << 12);
   if (stack == NULL)
     die("malloc", 0);
   ctx.uc_stack.ss_sp = stack;
-  ctx.uc_stack.ss_size = 1 << 11;
+  ctx.uc_stack.ss_size = 1 << 12;
   makecontext(&ctx, ctxfunc, 0);
   setcontext(&ctx);
   die("setcontext", 0);