diff --git a/src/soc/intel/apollolake/acpi.c b/src/soc/intel/apollolake/acpi.c
index 37aaf82..56d7732 100644
--- a/src/soc/intel/apollolake/acpi.c
+++ b/src/soc/intel/apollolake/acpi.c
@@ -287,7 +287,7 @@
 
 static int acpigen_soc_get_gpio_val(unsigned int gpio_num, uint32_t mask)
 {
-	assert (gpio_num < TOTAL_PADS);
+	assert(gpio_num < TOTAL_PADS);
 	uintptr_t addr = (uintptr_t)gpio_dwx_address(gpio_num);
 
 	acpigen_soc_get_dw0_in_local5(addr);
@@ -313,7 +313,7 @@
 
 static int acpigen_soc_set_gpio_val(unsigned int gpio_num, uint32_t val)
 {
-	assert (gpio_num < TOTAL_PADS);
+	assert(gpio_num < TOTAL_PADS);
 	uintptr_t addr = (uintptr_t)gpio_dwx_address(gpio_num);
 
 	acpigen_soc_get_dw0_in_local5(addr);