diff --git a/app/models/concerns/bulkrax/has_matchers.rb b/app/models/concerns/bulkrax/has_matchers.rb
index 173f0219..c29aced5 100644
--- a/app/models/concerns/bulkrax/has_matchers.rb
+++ b/app/models/concerns/bulkrax/has_matchers.rb
@@ -65,6 +65,7 @@ def set_parsed_data(name, value)
 
       parsed_metadata[name] ||= []
       parsed_metadata[name] += Array.wrap(value).flatten
+      parsed_metadata[name].uniq!
     end
 
     def set_parsed_object_data(object_multiple, object_name, name, index, value)