diff --git a/src/kemal/param_parser.cr b/src/kemal/param_parser.cr
index 92c3112..5d87ba0 100644
--- a/src/kemal/param_parser.cr
+++ b/src/kemal/param_parser.cr
@@ -97,6 +97,8 @@ module Kemal
         end
       when Array
         @json["_json"] = json
+      else
+        # Ignore non Array or Hash json values
       end
     end