diff --git a/Makefile.am b/Makefile.am
index 83e5774f..b4d1b0b0 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -8,7 +8,7 @@ DISTCLEANFILES= $(NULL)
 BUILT_SOURCES = $(NULL)
 
 if BUILD_DOCUMENTATION
-SUBDIRS = doc
+SUBDIRS = . doc
 endif
 
 %.service: %.service.in config.log