diff --git a/src/plug/hack/Makefile b/src/plug/hack/Makefile
index b05d8dd..d6c73f9 100644
--- a/src/plug/hack/Makefile
+++ b/src/plug/hack/Makefile
@@ -7,7 +7,6 @@ PERL_LIBS=`perl -MExtUtils::Embed -e ldopts` -lncurses
 PY_CFLAGS=-I${PREFIX}/include/python2.5/ -I/usr/include/python2.5/
 PY_LIBS=-lpython2.5
 LUA_CFLAGS=-I${PREFIX}/include/lua5.1/ -I/usr/include/lua5.1/
-LUA_LIBS=
 RUBY_CFLAGS=-I/usr/lib/ruby/1.8/i386-linux
 RUBY_LIBS=-lruby18
 SO=${SHARED_EXT}