diff --git a/sys/src/cmd/aux/8prefix.c b/sys/src/cmd/aux/8prefix.c
index 2ca7b7ae2..c8b5c548a 100644
--- a/sys/src/cmd/aux/8prefix.c
+++ b/sys/src/cmd/aux/8prefix.c
@@ -59,7 +59,7 @@ void renamesyms(int, Sym*, uchar*, int);
 void
 usage(void)
 {
-	fprint(2, "usage: 8prelink [-mv] prefix file.8...\n");
+	fprint(2, "usage: 8prefix [-mv] prefix file.8...\n");
 	exits("usage");
 }