diff --git a/.gitignore b/.gitignore
index 93b9df5..f80a3d3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -17,6 +17,7 @@ Makefile.in
 missing
 mumble-vm.tar
 mumble-vm.tar.xz
+mumble-vm.tar.xz.b64
 mumble-vm-machine.scm
 mumble-vm-system.scm
 signing-key.pub
diff --git a/Makefile.am b/Makefile.am
index 8169984..18bb43d 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -96,5 +96,8 @@ mumble-vm.tar: $(TARBALL_SOURCE)
 mumble-vm.tar.xz: mumble-vm.tar
 	xz -f -9e --verbose $<
 
+mumble-vm.tar.xz.b64: mumble-vm.tar.xz
+	base64 $< > $@
+
 deploy: $(IMAGE_SOURCE)
 	guix deploy -L . mumble-vm-machine.scm