diff --git a/Makefile.am b/Makefile.am
index 4a608903..c3c36f97 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -6,5 +6,6 @@ EXTRA_DIST = \
 	autogen.sh
 
 SUBDIRS = \
+	libltdl \
 	src \
 	test