diff --git a/Makefile.am b/Makefile.am
index b3a37ee..1ba0604 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,7 +1,7 @@
 AUTOMAKE_OPTIONS = foreign dist-bzip2 1.6
 
 INCLUDES = $(all_includes) -I$(top_srcdir)/include
-SUBDIRS = include src
+SUBDIRS = include src tests
 
 #dist-hook:
 #	rm -rf `find $(distdir) -name .svn`