diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
index 391a68731fe3..c40a6d14c8f2 100644
--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -2711,7 +2711,7 @@ int wacom_setup_touch_input_capabilities(struct input_dev *input_dev,
 	return 0;
 }
 
-void wacom_setup_numbered_buttons(struct input_dev *input_dev,
+static void wacom_setup_numbered_buttons(struct input_dev *input_dev,
 				int button_count)
 {
 	int i;