diff --git a/arch/powerpc/kernel/idle.c b/arch/powerpc/kernel/idle.c
index 939ea7ef0dc8063615ed9e1a2b5ca63626064d9e..d7216c9abda15110fe903e92a028840fc8131ff3 100644
--- a/arch/powerpc/kernel/idle.c
+++ b/arch/powerpc/kernel/idle.c
@@ -85,7 +85,7 @@ int powersave_nap;
 /*
  * Register the sysctl to set/clear powersave_nap.
  */
-static ctl_table powersave_nap_ctl_table[]={
+static struct ctl_table powersave_nap_ctl_table[] = {
 	{
 		.procname	= "powersave-nap",
 		.data		= &powersave_nap,
@@ -95,7 +95,7 @@ static ctl_table powersave_nap_ctl_table[]={
 	},
 	{}
 };
-static ctl_table powersave_nap_sysctl_root[] = {
+static struct ctl_table powersave_nap_sysctl_root[] = {
 	{
 		.procname	= "kernel",
 		.mode		= 0555,