diff --git a/pycardium/main.c b/pycardium/main.c
index f6c2933bc204ff4066e74a19c29bf33975adee03..947f072c119d36c8c77e453bc7f7da6c8619ca05 100644
--- a/pycardium/main.c
+++ b/pycardium/main.c
@@ -104,6 +104,11 @@ void HardFault_Handler(void)
 	epic_exit(255);
 }
 
+void _exit(void)
+{
+	epic_exit(254);
+}
+
 void gc_collect(void)
 {
 	void *sp = (void *)__get_MSP();