diff --git a/Dockerfile b/Dockerfile
index 32c7b5d..73f1c33 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,7 +3,10 @@
 #!BuildTag: opensuse/tumbleweed/virt-handler:%%PKG_VERSION%%.%RELEASE%
 
 # virt-handler 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-handler container"
diff --git a/virt-handler-container.changes b/virt-handler-container.changes
index 27e6387..6a7ac4e 100644
--- a/virt-handler-container.changes
+++ b/virt-handler-container.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Tue Nov 17 23:02:10 UTC 2020 - James Fehlig <jfehlig@suse.com>
+
+- use ARG for defining base image
+
 -------------------------------------------------------------------
 Tue Sep 15 03:18:15 UTC 2020 - James Fehlig <jfehlig@suse.com>