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-rw-r--r--activerecord/lib/active_record/associations/collection_association.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/associations/collection_association.rb b/activerecord/lib/active_record/associations/collection_association.rb
index 2447914640..2f6ddfeeb3 100644
--- a/activerecord/lib/active_record/associations/collection_association.rb
+++ b/activerecord/lib/active_record/associations/collection_association.rb
@@ -186,7 +186,7 @@ module ActiveRecord
if options[:uniq]
# This is needed because 'SELECT count(DISTINCT *)..' is not valid SQL.
column_name ||= reflection.klass.primary_key
- count_options.merge!(:distinct => true)
+ count_options[:distinct] = true
end
value = scoped.count(column_name, count_options)