diff --git a/virt-install-all.sh b/virt-install-all.sh
index 55a5c25..b71da01 100755
--- a/virt-install-all.sh
+++ b/virt-install-all.sh
@@ -144,6 +144,8 @@ cores=$(grep -E '^cpu cores' /proc/cpuinfo |head -1|cut -d: -f2|tr -d '[:space:]
 mem=$(sed -E 's/^MemTotal: +([0-9]+) kB/\1/p;d' < /proc/meminfo)
 mempercore=$(((mem/1024-4096)/cores))
 
+cp -f /usr/src/buildbot-workers/*.user /var/lib/libvirt/backingstore
+
 # elcapitan 1
 
 for i in $(seq "$cores"); do