diff --git a/netavark.spec b/netavark.spec
index 70eee64..4e8524a 100644
--- a/netavark.spec
+++ b/netavark.spec
@@ -4,10 +4,12 @@
 
 %global debug_package %{nil}
 
-%global built_tag_strip 1.2.0
+%global built_tag v1.2.0
+%global built_tag_strip %(b=%{built_tag}; echo ${b:1})
+%global gen_version %(b=%{built_tag_strip}; echo ${b/-/"~"})
 
 Name: netavark
-Version: 1.2.0
+Version: %{gen_version}
 Release: %autorelease
 License: ASL 2.0 and BSD and MIT
 ExclusiveArch: %{rust_arches}