diff --git a/lib/ferrum/browser/process.rb b/lib/ferrum/browser/process.rb
index 9bf1ce8c..2a86d2bc 100644
--- a/lib/ferrum/browser/process.rb
+++ b/lib/ferrum/browser/process.rb
@@ -101,8 +101,6 @@ def start
 
           parse_ws_url(read_io, @process_timeout)
           parse_browser_versions
-        ensure
-          close_io(read_io, write_io)
         end
       end