diff --git a/lib/ferrum/browser/process.rb b/lib/ferrum/browser/process.rb
index 7ca321ef..80c982c0 100644
--- a/lib/ferrum/browser/process.rb
+++ b/lib/ferrum/browser/process.rb
@@ -99,6 +99,7 @@ def start
 
           env = Hash(@xvfb&.to_env).merge(@env)
           @pid = ::Process.spawn(env, *@command.to_a, process_options)
+          puts "=================== #{@pid}"
           ObjectSpace.define_finalizer(self, self.class.process_killer(@pid))
 
           parse_ws_url(read_io, @process_timeout)
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 9f94527b..4c944a29 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -46,7 +46,7 @@
   end
 
   config.after(:all) do
-    @browser.quit
+    @browser&.quit
   end
 
   config.before(:each) do