diff --git a/Makefile.am b/Makefile.am
index cf42cc56c2da544af86f47643afa5d903bea1fd6..46784ae3f167133d75d01889b8c8aec76f99fb5b 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -6,6 +6,11 @@ EXTRA_DIST = \
 	COPYING.LGPL \
 	ChangeLog
 
+if INSTALL_HEADERS
+  pkginc_libdir=$(dovecot_pkgincludedir)/sieve
+  nodist_pkginc_lib_HEADERS = dsieve-config.h
+endif
+
 if MAINTAINER_MODE
 ChangeLog: .hg/dirstate
 	hg log --style=changelog > ChangeLog