diff --git a/drivers/acpi/debugfs.c b/drivers/acpi/debugfs.c
index 6355b575ee5ac22498b32953e0955cb2811e81ba..5df67f1d6c612537f10ac2fd84b6720911d16723 100644
--- a/drivers/acpi/debugfs.c
+++ b/drivers/acpi/debugfs.c
@@ -80,7 +80,7 @@ int __init acpi_debugfs_init(void)
 	if (!acpi_dir)
 		goto err;
 
-	cm_dentry = debugfs_create_file("custom_method", S_IWUGO,
+	cm_dentry = debugfs_create_file("custom_method", S_IWUSR,
 					acpi_dir, NULL, &cm_fops);
 	if (!cm_dentry)
 		goto err;