diff --git a/drivers/pinctrl/pinctrl-st.c b/drivers/pinctrl/pinctrl-st.c
index 3ae8066bc1279c1c23dfc7144215fb48879efae8..5d4789daf396cac1d5891381737ee645fb480e84 100644
--- a/drivers/pinctrl/pinctrl-st.c
+++ b/drivers/pinctrl/pinctrl-st.c
@@ -1442,7 +1442,7 @@ static void st_gpio_irqmux_handler(struct irq_desc *desc)
 	chained_irq_exit(chip, desc);
 }
 
-static struct gpio_chip st_gpio_template = {
+static const struct gpio_chip st_gpio_template = {
 	.request		= gpiochip_generic_request,
 	.free			= gpiochip_generic_free,
 	.get			= st_gpio_get,