diff --git a/src/pkg/runtime/arm/asm.s b/src/pkg/runtime/arm/asm.s
index 5ed16dee75..b9e7106d9c 100644
--- a/src/pkg/runtime/arm/asm.s
+++ b/src/pkg/runtime/arm/asm.s
@@ -270,3 +270,6 @@ TEXT abort(SB),7,$-4
 	MOVW	$0, R0
 	MOVW	(R0), R1
 
+TEXT	runcgocallback(SB),7,$0
+	MOVW	$0, R0
+	MOVW	(R0), R1