diff --git a/dockerfiles/rpm.dockerfile b/dockerfiles/rpm.dockerfile
index 0382ae08..f6a030cc 100644
--- a/dockerfiles/rpm.dockerfile
+++ b/dockerfiles/rpm.dockerfile
@@ -35,10 +35,11 @@ RUN yum install -y yum-utils rpm-build git
 FROM redhat-base AS rhel-base
 
 FROM redhat-base AS centos-base
-RUN if [ -f /etc/yum.repos.d/CentOS-PowerTools.repo ]; then sed -i 's/enabled=0/enabled=1/g' /etc/yum.repos.d/CentOS-PowerTools.repo; fi
+# Using a wildcard: CentOS 7 uses "CentOS-RepoName", CentOS 8 uses "CentOS-Linux-RepoName"
+RUN if [ -f /etc/yum.repos.d/CentOS-*PowerTools.repo ]; then sed -i 's/enabled=0/enabled=1/g' /etc/yum.repos.d/CentOS-*PowerTools.repo; fi
 # In aarch64 (arm64) images, the altarch repo is specified as repository, but
 # failing, so replace the URL.
-RUN if [ -f /etc/yum.repos.d/CentOS-Sources.repo ]; then sed -i 's/altarch/centos/g' /etc/yum.repos.d/CentOS-Sources.repo; fi
+RUN if [ -f /etc/yum.repos.d/CentOS-*Sources.repo ]; then sed -i 's/altarch/centos/g' /etc/yum.repos.d/CentOS-*Sources.repo; fi
 
 FROM redhat-base AS amzn-base