src/Makefile.am | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/Makefile.am b/src/Makefile.am
index f4234a1..6d99d31 100755
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -23,9 +23,11 @@ ElmerPost_LDADD=\
 	./visuals/libvisuals.a \
 	./graphics/libgraphics.a \
 	./glaux/libglaux.a \
-	./tk/libtk.a
+	./tk/libtk.a \
+	-lX11
 
 QueryGLXExt_SOURCES=QueryGLXExt.c 
+QueryGLXExt_LDADD=-lX11
 
 all-local: screensave.so
 clean-local: