diff --git a/lib/rackstash/fields/array.rb b/lib/rackstash/fields/array.rb
index 750226b..368bfde 100644
--- a/lib/rackstash/fields/array.rb
+++ b/lib/rackstash/fields/array.rb
@@ -56,7 +56,7 @@ module Rackstash
     end
 
     def self.Array(array)
-      Array.new.concat(array)
+      Rackstash::Fields::Array.new.concat(array)
     end
   end
 end
diff --git a/lib/rackstash/fields/hash.rb b/lib/rackstash/fields/hash.rb
index 880f400..d75b5b1 100644
--- a/lib/rackstash/fields/hash.rb
+++ b/lib/rackstash/fields/hash.rb
@@ -114,7 +114,7 @@ module Rackstash
     end
 
     def self.Hash(raw, forbidden_keys: EMPTY_SET)
-      Hash.new(forbidden_keys: forbidden_keys).merge!(raw)
+      Rackstash::Fields::Hash.new(forbidden_keys: forbidden_keys).merge!(raw)
     end
   end
 end