diff --git a/flex/build b/flex/build
index dac4763..5813a9b 100755
--- a/flex/build
+++ b/flex/build
@@ -6,4 +6,4 @@ HELP2MAN=/tools/bin/true ./configure --prefix=/usr --docdir=/usr/share/doc/flex-
 make
 make check
 make install DESTDIR="$1"
-ln -sv flex /usr/bin/lex
+ln -sv flex $1/usr/bin/lex