diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
index 79a7343c28a6ffe67ae6d66970142d2c9cd2a89f..789af4ff5c9ccdb38edbe89dc1e03c9b8152cfaf 100644
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -27,7 +27,7 @@
 #include <linux/hrtimer.h>
 #include "governor.h"
 
-struct class *devfreq_class;
+static struct class *devfreq_class;
 
 /*
  * devfreq core provides delayed work based load monitoring helper