diff --git a/containernetworking-plugins.spec b/containernetworking-plugins.spec
index 9137448..f7cdfb3 100644
--- a/containernetworking-plugins.spec
+++ b/containernetworking-plugins.spec
@@ -22,7 +22,7 @@
 %global import_path %{provider}.%{provider_tld}/%{project}/%{repo}
 %global git0 https://%{import_path}
 
-%global built_tag v1.1.1
+%global built_tag_strip 1.1.1
 
 Name: %{project}-%{repo}
 Version: 1.1.1
@@ -36,7 +36,7 @@ License: ASL 2.0 and BSD and MIT
 %endif
 Summary: Libraries for writing CNI plugin
 URL: %{git0}
-Source0: %{git0}/archive/%{built_tag}.tar.gz
+Source0: %{git0}/archive/v%{built_tag_strip}.tar.gz
 BuildRequires: golang >= 1.16.6
 %if "%{_vendor}" == "debbuild"
 BuildRequires: libsystemd-dev
@@ -89,7 +89,7 @@ only with network connectivity of containers and removing allocated resources
 when the container is deleted.
 
 %prep
-%autosetup -p1 -n %{repo}-%{version}
+%autosetup -p1 -n %{repo}-%{built_tag_strip}
 rm -rf plugins/main/windows
 
 # Use correct paths in cni-dhcp unitfiles