diff --git a/lib/searchkick.rb b/lib/searchkick.rb
index 63f0790..4fd68d2 100644
--- a/lib/searchkick.rb
+++ b/lib/searchkick.rb
@@ -48,7 +48,7 @@ module Searchkick
   class ImportError < Error; end
 
   class << self
-    attr_accessor :search_method_name, :wordnet_path, :timeout, :models, :client_options, :redis, :index_prefix, :index_suffix, :queue_name
+    attr_accessor :search_method_name, :wordnet_path, :timeout, :models, :client_options, :redis, :index_prefix, :index_suffix, :queue_name, :model_options
     attr_writer :client, :env, :search_timeout
     attr_reader :aws_credentials
   end
@@ -58,6 +58,7 @@ module Searchkick
   self.models = []
   self.client_options = {}
   self.queue_name = :searchkick
+  self.model_options = {}
 
   def self.client
     @client ||= begin
diff --git a/lib/searchkick/model.rb b/lib/searchkick/model.rb
index b8267fb..4f64c00 100644
--- a/lib/searchkick/model.rb
+++ b/lib/searchkick/model.rb
@@ -1,6 +1,8 @@
 module Searchkick
   module Model
     def searchkick(**options)
+      options = Searchkick.model_options.merge(options)
+
       unknown_keywords = options.keys - [:_all, :_type, :batch_size, :callbacks, :conversions, :default_fields,
         :filterable, :geo_shape, :highlight, :ignore_above, :index_name, :index_prefix, :inheritance, :language,
         :locations, :mappings, :match, :merge_mappings, :routing, :searchable, :settings, :similarity,
--
libgit2 0.21.0