diff --git a/mm/util.c b/mm/util.c
index 429619bc376e..9ba047da4459 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -361,12 +361,12 @@ unsigned long randomize_stack_top(unsigned long stack_top)
 	if (current->flags & PF_RANDOMIZE) {
 		random_variable = get_random_long();
 		random_variable &= STACK_RND_MASK;
-		random_variable <<= PAGE_SHIFT;
+		random_variable <<= __PAGE_SHIFT;
 	}
 #ifdef CONFIG_STACK_GROWSUP
-	return PAGE_ALIGN(stack_top) + random_variable;
+	return __PAGE_ALIGN(stack_top) + random_variable;
 #else
-	return PAGE_ALIGN(stack_top) - random_variable;
+	return __PAGE_ALIGN(stack_top) - random_variable;
 #endif
 }