diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 3b21a13d841c4c822973110bb4d8abb445c21a00..fe14a8c87fc27d8822faeaff71cf990f6f9a95ef 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1896,7 +1896,7 @@ static int __devinit pageset_cpuup_callback(struct notifier_block *nfb,
 static struct notifier_block pageset_notifier =
 	{ &pageset_cpuup_callback, NULL, 0 };
 
-void __init setup_per_cpu_pageset()
+void __init setup_per_cpu_pageset(void)
 {
 	int err;