diff --git a/spec/browser/xvfb_spec.rb b/spec/browser/xvfb_spec.rb
index 6f5fd016..cbeb7b8a 100644
--- a/spec/browser/xvfb_spec.rb
+++ b/spec/browser/xvfb_spec.rb
@@ -50,7 +50,8 @@
       expect(process.xvfb.screen_size).to eq("1024x768x24")
     ensure
       xvfb_browser&.quit
-      expect(process_alive?(process.xvfb.pid)).to be(false)
+      pid = process&.xvfb&.pid
+      expect(process_alive?(pid)).to be(false) if pid
     end
   end