diff --git a/tools/virtual.c b/tools/virtual.c
index 9b6b730c..b45f6fdc 100644
--- a/tools/virtual.c
+++ b/tools/virtual.c
@@ -2386,6 +2386,8 @@ static void context_cleanup(struct context *ctx)
 
 	XRRFreeScreenResources(res);
 
+	if (ctx->singleton)
+		XDeleteProperty(dpy, ctx->display->root, ctx->singleton);
 	XCloseDisplay(dpy);
 }