diff --git a/Makefile.am b/Makefile.am
index 0862a24..55e32fb 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -18,7 +18,7 @@ auxdir = @ac_aux_dir@
 
 AUTOMAKE_OPTIONS = 1.8 dist-bzip2 foreign nostdinc no-dist-gzip
 
-SUBDIRS = $(auxdir) html src
+SUBDIRS = $(auxdir) html src src/include
 
 EXTRA_DIST = AUTHORS COPYING ChangeLog VERSION distromatic.conf