diff --git a/lib/jsonapi/acts_as_resource_controller.rb b/lib/jsonapi/acts_as_resource_controller.rb
index 6dd0e3f2e..2225ca444 100644
--- a/lib/jsonapi/acts_as_resource_controller.rb
+++ b/lib/jsonapi/acts_as_resource_controller.rb
@@ -139,7 +139,7 @@ def resource_klass_name
     end
 
     def verify_content_type_header
-      unless request.content_type == JSONAPI::MEDIA_TYPE
+      unless media_types_for('Content-Type').first == JSONAPI::MEDIA_TYPE
         fail JSONAPI::Exceptions::UnsupportedMediaTypeError.new(request.content_type)
       end
       true