diff --git a/Makefile.am b/Makefile.am
index 57ac38d..767081d 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -12,7 +12,7 @@
 lib_LTLIBRARIES = libndn-c.la libndn-cpp.la
 
 # "make install" will also install the include headers.
-SUBDIRS = include .
+SUBDIRS = include . tools
 
 if COMPILE_TESTS
   SUBDIRS += tests