diff --git a/firmware/hw_layer/drivers/gpio/gpio_ext.h b/firmware/hw_layer/drivers/gpio/gpio_ext.h
index 8e1b7af71d..a4af66276f 100644
--- a/firmware/hw_layer/drivers/gpio/gpio_ext.h
+++ b/firmware/hw_layer/drivers/gpio/gpio_ext.h
@@ -37,7 +37,6 @@ const char *gpiochips_getPinName(brain_pin_e pin);
 
 /* register/unregister GPIO chip */
 int gpiochip_register(brain_pin_e base, const char *name, GpioChip& chip, size_t size);
-int gpiochip_unregister(brain_pin_e base);
 
 /* Set individual names for pins */
 int gpiochips_setPinNames(brain_pin_e base, const char **names);