diff --git a/warewulf4.spec b/warewulf4.spec
index b5ecb30..9729f34 100644
--- a/warewulf4.spec
+++ b/warewulf4.spec
@@ -16,7 +16,7 @@
 #
 
 
-%define %rc rc3
+%define rc_v rc3
 
 ExclusiveArch:  x86_64 aarch64
 
@@ -27,7 +27,7 @@ Summary:        A suite of tools for clustering
 License:        BSD-3-Clause
 Group:          Productivity/Clustering/Computing
 URL:            https://warewulf.org
-Source0:        https://github.com/hpcng/warewulf/archive/v%{version}%{?rc}.tar.gz#/warewulf4-v%{version}.tar.gz
+Source0:        https://github.com/hpcng/warewulf/archive/v%{version}%{?rc_v}.tar.gz#/warewulf4-v%{version}.tar.gz
 Source1:        vendor.tar.gz
 Source3:        warewulf4-rpmlintrc
 
@@ -95,7 +95,7 @@ This package install the necessary configuration files in order to run a slurm
 cluster on the configured warewulf nodes.
 
 %prep
-%setup -q -n warewulf-%{version}%{?rc}
+%setup -q -n warewulf-%{version}%{?rc_v}
 # extract the vendor stuff
 tar xzf %{S:1}
 %autopatch -p1