diff --git a/lib/Makefile b/lib/Makefile
index 98251ef2..380cb9e2 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -15,6 +15,7 @@ NOPROFILE= yes
 CFLAGS+= -std=c99 -Wmissing-prototypes -Wall -Wextra -Wshadow -Wno-uninitialized -g
 CFLAGS+= -fPIC
 CFLAGS+= -I${X11BASE}/include
+LDADD+= -L${X11BASE}/lib -lX11
 
 install:
 	${INSTALL} ${INSTALL_COPY} -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \