diff --git a/sys/src/mkfile b/sys/src/mkfile
index a57df5b77..3c36781fb 100644
--- a/sys/src/mkfile
+++ b/sys/src/mkfile
@@ -14,6 +14,7 @@ LIBS=\
 	libdisk\
 	libdraw\
 	libflate\
+	libfis\
 	libframe\
 	libgeometry\
 	libhtml\