diff --git a/Dockerfile b/Dockerfile
index dcf92d0..34e3c88 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,7 +3,10 @@
 #!BuildTag: opensuse/tumbleweed/virt-launcher:%%PKG_VERSION%%.%RELEASE%
 
 # virt-launcher container image
-FROM opensuse/tumbleweed
+# KUBEVIRTFROM defined in prjconf, e.g.
+#  BuildFlags: dockerarg:KUBEVIRTFROM=opensuse/tumbleweed
+ARG KUBEVIRTFROM
+FROM $KUBEVIRTFROM
 
 # labelprefix=org.opensuse.kubevirt
 PREFIXEDLABEL org.opencontainers.image.title="kubevirt virt-launcher container"
diff --git a/virt-launcher-container.changes b/virt-launcher-container.changes
index b756ea6..fc9b132 100644
--- a/virt-launcher-container.changes
+++ b/virt-launcher-container.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Tue Nov 17 23:03:31 UTC 2020 - James Fehlig <jfehlig@suse.com>
+
+- use ARG for defining base image
+
 -------------------------------------------------------------------
 Tue Sep 15 03:21:06 UTC 2020 - James Fehlig <jfehlig@suse.com>