diff --git a/src/lib9/mkfile b/src/lib9/mkfile
index 0c1c302..88fcf6f 100644
--- a/src/lib9/mkfile
+++ b/src/lib9/mkfile
@@ -13,7 +13,7 @@
 	fmt.$O\
 	fmtfd.$O\
 	fmtfdflush.$O\
-	fmtlock.$O\
+	fmtlock2.$O\
 	fmtprint.$O\
 	fmtquote.$O\
 	fmtrune.$O\