diff --git a/drivers/thermal/imx91_thermal.c b/drivers/thermal/imx91_thermal.c
index 274eee303142..196ee20fce1e 100644
--- a/drivers/thermal/imx91_thermal.c
+++ b/drivers/thermal/imx91_thermal.c
@@ -225,7 +225,7 @@ static int imx91_tmu_change_mode(struct thermal_zone_device *tz, enum thermal_de
 	return 0;
 }
 
-static struct thermal_zone_device_ops tmu_tz_ops = {
+static const struct thermal_zone_device_ops tmu_tz_ops = {
 	.get_temp = imx91_tmu_get_temp,
 	.change_mode = imx91_tmu_change_mode,
 	.set_trips = imx91_tmu_set_trips,