diff --git a/src/cmd/gc/plive.c b/src/cmd/gc/plive.c
index 360e8ff552..f6db02be54 100644
--- a/src/cmd/gc/plive.c
+++ b/src/cmd/gc/plive.c
@@ -1419,7 +1419,7 @@ livenessepilogue(Liveness *lv)
 	Node *n;
 	Prog *p, *next;
 	int32 i, j, numlive, startmsg, nmsg, nvars, pos;
-	int64 xoffset;
+	vlong xoffset;
 	char **msg;
 	Fmt fmt;