diff --git a/slirp4netns.spec b/slirp4netns.spec
index db9371d..be056ab 100644
--- a/slirp4netns.spec
+++ b/slirp4netns.spec
@@ -3,8 +3,10 @@
 %global shortcommit0 %(c=%{commit0}; echo ${c:0:7})
 
 # Used for comparing with latest upstream tag
-# to decide whether to autobuild (non-rawhide only)
+# to decide whether to autobuild and set download_url (non-rawhide only)
 %define built_tag v1.1.9
+%define built_tag_strip %(b=%{built_tag}; echo ${b:1})
+%define download_url %{git0}/archive/%{built_tag}.tar.gz
 
 Name: slirp4netns
 Version: 1.1.9