diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index d0d79e6..1f4a3f8 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -469,7 +469,7 @@
 }
 EXPORT_SYMBOL_GPL(sysfs_notify_dirent);
 
-void sysfs_notify(struct kobject *k, char *dir, char *attr)
+void sysfs_notify(struct kobject *k, const char *dir, const char *attr)
 {
 	struct sysfs_dirent *sd = k->sd;