1 files changed, 1 insertions, 1 deletions
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 ff5712ed5d..bae4e206e6 100644
--- a/activesupport/lib/active_support/core_ext/string/output_safety.rb
+++ b/activesupport/lib/active_support/core_ext/string/output_safety.rb
@@ -222,7 +222,7 @@ module ActiveSupport #:nodoc:
     end
 
     def encode_with(coder)
-      coder.represent_scalar nil, to_str
+      coder.represent_object nil, to_str
     end
 
     UNSAFE_STRING_METHODS.each do |unsafe_method|