diff --git a/Makefile.am b/Makefile.am
index b8cf793b..29718b9d 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -26,4 +26,4 @@ ACLOCAL_AMFLAGS = -I m4
 
 dist_doc_DATA = README.rst
 
-EXTRA_DIST = shrpx.conf.sample
+EXTRA_DIST = shrpx.conf.sample proxy.pac.sample