diff --git a/integration/linux/build/Dockerfile-centos.template b/integration/linux/build/Dockerfile-centos.template
index 702c23c..e9f0c3e 100644
--- a/integration/linux/build/Dockerfile-centos.template
+++ b/integration/linux/build/Dockerfile-centos.template
@@ -20,9 +20,7 @@ ENV GCC_VERSION 11
 # baseurl. Switch to the archive.kernel.org mirror while we are at it.
 RUN set -ex \
 	&& ulimit -n 1024 \
-%%IF VARIANT=7%%
-	&& sed -i 's/enabled=1/enabled=0/g' /etc/yum/pluginconf.d/fastestmirror.conf \
-%%ENDIF%%
+	&& ( [ -e /etc/yum/pluginconf.d/fastestmirror.conf ] && sed -i 's/enabled=1/enabled=0/g' /etc/yum/pluginconf.d/fastestmirror.conf || true ) \
     && sed -i 's/mirrorlist/#mirrorlist/g' /etc/yum.repos.d/CentOS-* \
     && sed -i 's|# \?baseurl=http://mirror.centos.org|baseurl=https://archive.kernel.org/centos-vault/|g' /etc/yum.repos.d/CentOS-* \
     && yum update -y \