diff --git a/lib/runtime.asm b/lib/runtime.asm
index 5cb4458..8e4034b 100644
--- a/lib/runtime.asm
+++ b/lib/runtime.asm
@@ -6,6 +6,7 @@
 #
 
 .extern main
+.globl _start
 
 .stack
 .align 2