diff --git a/configure.ac b/configure.ac
index 5c0bede..9432715 100644
--- a/configure.ac
+++ b/configure.ac
@@ -273,4 +273,5 @@
     doc/manuals/Makefile
     contrib/Makefile
     contrib/systemd/Makefile
+    contrib/osmo-sgsn.spec
     Makefile)