diff --git a/Makefile.am b/Makefile.am
--- a/Makefile.am
+++ b/Makefile.am
@@ -8,7 +8,8 @@
 	m4/lx_check_cplex.m4 \
 	m4/lx_check_glpk.m4 \
 	m4/lx_check_soplex.m4 \
-	CMakeLists.txt
+	CMakeLists.txt \
+	cmake
 
 pkgconfigdir = $(libdir)/pkgconfig
 lemondir = $(pkgincludedir)