diff --git a/activesupport/lib/active_support/core_ext/string/output_safety.rb b/activesupport/lib/active_support/core_ext/string/output_safety.rb
index 728ab087fa44ad0aaf85f3d25b1d42773d5cdd32..4903687b731b5c653ff66a7736f3a9442bd37344 100644
--- a/activesupport/lib/active_support/core_ext/string/output_safety.rb
+++ b/activesupport/lib/active_support/core_ext/string/output_safety.rb
@@ -131,9 +131,7 @@ def initialize_copy(other)
     end
 
     def clone_empty
-      new_safe_buffer = self[0, 0]
-      new_safe_buffer.instance_variable_set(:@dirty, @dirty)
-      new_safe_buffer
+      self[0, 0]
     end
 
     def concat(value)