diff --git a/lib/searchkick/query.rb b/lib/searchkick/query.rb
index 0c2fa7e..a8f5644 100644
--- a/lib/searchkick/query.rb
+++ b/lib/searchkick/query.rb
@@ -63,10 +63,6 @@ module Searchkick
           # there can be multiple models per index name due to inheritance - see #1259
           (@index_mapping[model.searchkick_index.name] ||= []) << model
         end
-
-        if options[:per_page] && @index_mapping.values.flatten.any? { |m| m != m.searchkick_klass }
-          warn "[searchkick] Passing child models to the models option throws off pagination"
-        end
       end
 
       index =
@@ -136,6 +132,12 @@ module Searchkick
         suggest: options[:suggest]
       }
 
+      # not great place, but params method is called multiple times
+      # and we want warning to show up only once
+      if options[:models] && options[:per_page] && @index_mapping.values.flatten.any? { |m| m != m.searchkick_klass }
+        warn "[searchkick] WARNING: Passing child models to the models option throws off pagination - use type option instead"
+      end
+
       if options[:debug]
         require "pp"
 
--
libgit2 0.21.0