diff --git a/src/mgos_mock.c b/src/mgos_mock.c
index 91aa3d9..63abf46 100644
--- a/src/mgos_mock.c
+++ b/src/mgos_mock.c
@@ -118,6 +118,14 @@ void mgos_gpio_clear_int(int pin) {
   (void)pin;
 }
 
+bool mgos_gpio_setup_input(int pin, enum mgos_gpio_pull_type pull) {
+  LOG(LL_INFO, ("Not implemented."));
+  return true;
+
+  (void)pin;
+  (void)pull;
+}
+
 bool mgos_gpio_set_mode(int pin, enum mgos_gpio_mode mode) {
   LOG(LL_INFO, ("Not implemented."));
   return true;