diff --git a/db/Makefile.am b/db/Makefile.am
index 43b017e0d2..01f3761e0c 100644
--- a/db/Makefile.am
+++ b/db/Makefile.am
@@ -1,8 +1,12 @@
 ## -*- mode: makefile; tab-width: 4 -*-
 ## $Id$
 
+include $(top_srcdir)/Makefile.incl
+
 ## the following headers need to be installed
+if INSTALL_HEADERS
 pkginclude_HEADERS =  boinc_db.h db_base.h
+endif
 
 ## other stuff to go into the distribution
 EXTRA_DIST = constraints.sql schema.sql init_db