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-rw-r--r--actionview/lib/action_view/helpers/tags/collection_helpers.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/actionview/lib/action_view/helpers/tags/collection_helpers.rb b/actionview/lib/action_view/helpers/tags/collection_helpers.rb
index 991f32cea2..8050638363 100644
--- a/actionview/lib/action_view/helpers/tags/collection_helpers.rb
+++ b/actionview/lib/action_view/helpers/tags/collection_helpers.rb
@@ -44,7 +44,7 @@ module ActionView
def default_html_options_for_collection(item, value) #:nodoc:
html_options = @html_options.dup
- [:checked, :selected, :disabled].each do |option|
+ [:checked, :selected, :disabled, :readonly].each do |option|
current_value = @options[option]
next if current_value.nil?