lib/grape/dsl/inside_route.rb in grape-0.10.0 vs lib/grape/dsl/inside_route.rb in grape-0.10.1

@@ -36,10 +36,10 @@
             key = { key => nil } unless key.is_a? Hash
 
             key.each_pair do |parent, children|
               output_key = options[:stringify] ? parent.to_s : parent.to_sym
 
-              next unless options[:include_missing] || children || params[parent]
+              next unless options[:include_missing] || children || params.key?(parent)
 
               if params.key?(parent) || options[:include_missing]
                 hash[output_key] = if children
                                      declared(params[parent] || {}, options, Array(children))
                                    else