diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 271d3be..26dbf40 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -48,7 +48,7 @@ static DEFINE_PER_CPU(char[CPUFREQ_NAME_LEN], cpufreq_cpu_governor);
 static DEFINE_SPINLOCK(cpufreq_driver_lock);
 
 /* Used when we unregister cpufreq driver */
-struct cpumask	cpufreq_online_mask;
+static struct cpumask	cpufreq_online_mask;
 
 /*
  * cpu_policy_rwsem is a per CPU reader-writer semaphore designed to cure