diff --git a/mach/vax4/libem/rck4.s b/mach/vax4/libem/rck4.s
index 93305fa62..9882c3252 100644
--- a/mach/vax4/libem/rck4.s
+++ b/mach/vax4/libem/rck4.s
@@ -15,4 +15,5 @@
 Lerr:
 	pushl	r1
 	pushl	$ERANGE
-	jmp	.trp
+	jsb	.trp
+	rsb