diff --git a/stm-firmware/safety/safety-controller.c b/stm-firmware/safety/safety-controller.c
index 49a4ec2..4d79946 100644
--- a/stm-firmware/safety/safety-controller.c
+++ b/stm-firmware/safety/safety-controller.c
@@ -449,7 +449,7 @@ void safety_controller_report_analog_value(enum analog_value_monitor monitor, fl
  * @param flags Flags read from error memory
  * @return 0 if ok, != 0 if error
  */
-static enum safety_flag get_safety_flags_from_error_mem(enum safety_flag *flags)
+static int get_safety_flags_from_error_mem(enum safety_flag *flags)
 {
 	uint32_t count;
 	uint32_t idx;