diff --git a/drivers/pwm/pwm-twl.c b/drivers/pwm/pwm-twl.c
index 2782001..eef9105 100644
--- a/drivers/pwm/pwm-twl.c
+++ b/drivers/pwm/pwm-twl.c
@@ -335,7 +335,7 @@
 }
 
 #ifdef CONFIG_OF
-static struct of_device_id twl_pwm_of_match[] = {
+static const struct of_device_id twl_pwm_of_match[] = {
 	{ .compatible = "ti,twl4030-pwm" },
 	{ .compatible = "ti,twl6030-pwm" },
 	{ },