diff --git a/Makefile.am b/Makefile.am
index cdad429f..e393250d 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,6 +1,6 @@
 # Makefile.am for Openbox
 
-SUBDIRS = data doc src util
+SUBDIRS = data doc otk src util
 MAINTAINERCLEANFILES = aclocal.m4 config.h.in configure Makefile.in stamp-h.in
 
 uninstall-local: