diff --git a/prepare-vms/lib/commands.sh b/prepare-vms/lib/commands.sh
index 602cf28a..cc8b6c60 100644
--- a/prepare-vms/lib/commands.sh
+++ b/prepare-vms/lib/commands.sh
@@ -596,7 +596,7 @@ _cmd_www() {
         echo "http://$IPADDR:8000/$F"
     done
     info "Press Ctrl-C to stop server."
-    python -m http.server
+    python3 -m http.server
 }
 
 greet() {