diff --git a/src/ruby_supportlib/phusion_passenger/preloader_shared_helpers.rb b/src/ruby_supportlib/phusion_passenger/preloader_shared_helpers.rb
index 9db4f57648..aed98d8746 100644
--- a/src/ruby_supportlib/phusion_passenger/preloader_shared_helpers.rb
+++ b/src/ruby_supportlib/phusion_passenger/preloader_shared_helpers.rb
@@ -101,9 +101,6 @@ def handle_spawn_command(client, doc, options)
       LoaderSharedHelpers.record_journey_step_begin('PRELOADER_FORK_SUBPROCESS',
         'STEP_IN_PROGRESS', work_dir)
 
-      # Improve copy-on-write friendliness.
-      GC.start
-
       begin
         pid = fork
       rescue SystemCallError => e