diff --git a/.rubocop_todo.yml b/.rubocop_todo.yml
index 04daa38a..dbbb35f8 100644
--- a/.rubocop_todo.yml
+++ b/.rubocop_todo.yml
@@ -13,7 +13,7 @@ Metrics/AbcSize:
 # Offense count: 1
 # Configuration parameters: CountComments.
 Metrics/ClassLength:
-  Max: 233
+  Max: 250
 
 # Offense count: 6
 Metrics/CyclomaticComplexity:
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 31793512..0633ae1d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,11 @@
 
 n.n.n / 2016-03-16
 ==================
+[#367](https://github.com/ruby-grape/grape-swagger/pull/367)
+
+  - set default `type: Integer` and `required: true` for path params,
+    if they wasn't specified inside the `params` bloack as required
+
 [#365](https://github.com/ruby-grape/grape-swagger/pull/365)
 
 - fixes passing markdown with redcarpet even with nil description and detail
diff --git a/lib/grape-swagger.rb b/lib/grape-swagger.rb
index c6b59a22..290c3e3f 100644
--- a/lib/grape-swagger.rb
+++ b/lib/grape-swagger.rb
@@ -3,16 +3,6 @@
 require 'grape-swagger/endpoint'
 require 'grape-swagger/errors'
 
-require 'grape-swagger/doc_methods/produces_consumes'
-require 'grape-swagger/doc_methods/data_type'
-require 'grape-swagger/doc_methods/extensions'
-require 'grape-swagger/doc_methods/operation_id'
-require 'grape-swagger/doc_methods/optional_object'
-require 'grape-swagger/doc_methods/path_string'
-require 'grape-swagger/doc_methods/tag_name_description'
-require 'grape-swagger/doc_methods/parse_params'
-# require 'grape-swagger/doc_methods/move_params'
-
 require 'grape-swagger/doc_methods'
 
 require 'grape-swagger/markdown/kramdown_adapter'
diff --git a/lib/grape-swagger/doc_methods.rb b/lib/grape-swagger/doc_methods.rb
index 8e8e801a..42688030 100644
--- a/lib/grape-swagger/doc_methods.rb
+++ b/lib/grape-swagger/doc_methods.rb
@@ -1,3 +1,13 @@
+require 'grape-swagger/doc_methods/produces_consumes'
+require 'grape-swagger/doc_methods/data_type'
+require 'grape-swagger/doc_methods/extensions'
+require 'grape-swagger/doc_methods/operation_id'
+require 'grape-swagger/doc_methods/optional_object'
+require 'grape-swagger/doc_methods/path_string'
+require 'grape-swagger/doc_methods/tag_name_description'
+require 'grape-swagger/doc_methods/parse_params'
+# require 'grape-swagger/doc_methods/move_params'
+
 module GrapeSwagger
   module DocMethods
     def name
diff --git a/lib/grape-swagger/doc_methods/parse_params.rb b/lib/grape-swagger/doc_methods/parse_params.rb
index f2a7ed38..f9d935f7 100644
--- a/lib/grape-swagger/doc_methods/parse_params.rb
+++ b/lib/grape-swagger/doc_methods/parse_params.rb
@@ -77,10 +77,10 @@ def document_array_param(value_type)
         def param_type(value_type)
           param_type = value_type[:param_type] || value_type[:in]
           case
-          when param_type
-            param_type
           when value_type[:path].include?("{#{value_type[:param_name]}}")
             'path'
+          when param_type
+            param_type
           when %w(POST PUT PATCH).include?(value_type[:method])
             GrapeSwagger::DocMethods::DataType.request_primitive?(value_type[:data_type]) ? 'formData' : 'body'
           else
diff --git a/lib/grape-swagger/endpoint.rb b/lib/grape-swagger/endpoint.rb
index 4ea66b8c..6cd95fad 100644
--- a/lib/grape-swagger/endpoint.rb
+++ b/lib/grape-swagger/endpoint.rb
@@ -72,6 +72,7 @@ def path_and_definition_objects(namespace_routes, options)
 
       add_definitions_from options[:models]
 
+      # GrapeSwagger::DocMethods::MoveParams.to_definition(@paths, @definitions)
       [@paths, @definitions]
     end
 
@@ -144,6 +145,7 @@ def consumes_object(route, format)
     def params_object(route)
       partition_params(route).map do |param, value|
         value = { required: false }.merge(value) if value.is_a?(Hash)
+        _, value = default_type([[param, value]]).first if value == ''
         GrapeSwagger::DocMethods::ParseParams.call(param, value, route)
       end
     end
@@ -162,7 +164,10 @@ def response_object(route)
         response_model = @item
         response_model = expose_params_from_model(value[:model]) if value[:model]
 
-        memo[204] = memo.delete(200) if memo.key?(200) && route.route_method == 'DELETE' && value[:model].nil?
+        if memo.key?(200) && route.route_method == 'DELETE' && value[:model].nil?
+          memo[204] = memo.delete(200)
+          value[:code] = 204
+        end
 
         next unless !response_model.start_with?('Swagger_doc') &&
                     ((@definitions[response_model] && value[:code].to_s.start_with?('2')) || value[:model])
@@ -186,6 +191,9 @@ def partition_params(route)
       declared_params = route.route_settings[:declared_params] if route.route_settings[:declared_params].present?
       required, exposed = route.route_params.partition { |x| x.first.is_a? String }
 
+      default_type(required)
+      default_type(exposed)
+
       unless declared_params.nil?
         request_params = parse_request_params(required)
       end
@@ -198,12 +206,22 @@ def partition_params(route)
       end
 
       key = model_name(@entity || @item)
-      @definitions[key] = { type: 'object', properties: properties } unless properties.empty? || @definitions.key?(key) || (route.route_method == 'DELETE' && !@entity)
+
+      unless properties.empty? || (route.route_method == 'DELETE' && !@entity)
+        @definitions[key] = { type: 'object', properties: properties } unless @definitions.key?(key)
+        @definitions[key][:properties].merge!(properties) if @definitions.key?(key)
+      end
 
       return route.route_params if route.route_params && !route.route_settings[:declared_params].present?
       request_params || {}
     end
 
+    def default_type(params)
+      params.each do |param|
+        param[-1] = param.last == '' ? { required: true, type: 'Integer' } : param.last
+      end
+    end
+
     def parse_request_params(required)
       required.each_with_object({}) do |param, memo|
         @array_key = param.first.to_s.gsub('[', '[][') if param.last[:type] == 'Array'
diff --git a/spec/swagger_v2/api_swagger_v2_request_params_fix_spec.rb b/spec/swagger_v2/api_swagger_v2_request_params_fix_spec.rb
new file mode 100644
index 00000000..8adf03a2
--- /dev/null
+++ b/spec/swagger_v2/api_swagger_v2_request_params_fix_spec.rb
@@ -0,0 +1,64 @@
+require 'spec_helper'
+
+describe 'additional parameter settings' do
+  before :all do
+    module TheApi
+      class RequestParamFix < Grape::API
+        resource :bookings do
+          desc 'Update booking'
+          params do
+            optional :name, type: String
+          end
+          put ':id' do
+            { "declared_params" => declared(params) }
+          end
+
+          desc 'Get booking details'
+          get ':id' do
+            { "declared_params" => declared(params) }
+          end
+
+          desc 'Get booking details by access_number'
+          get '/conf/:access_number' do
+            { "declared_params" => declared(params) }
+          end
+
+          desc 'Remove booking'
+          delete ':id' do
+            { "declared_params" => declared(params) }
+          end
+        end
+
+        add_swagger_documentation
+      end
+    end
+  end
+
+  def app
+    TheApi::RequestParamFix
+  end
+
+  subject do
+    get '/swagger_doc'
+    JSON.parse(last_response.body)
+  end
+
+  specify do
+    expect(subject['paths']['/bookings/{id}']['put']['parameters']).to eql([
+      {"in"=>"path", "name"=>"id", "description"=>nil, "type"=>"integer", "format"=>"int32", "required"=>true},
+      {"in"=>"formData", "name"=>"name", "description"=>nil, "type"=>"string", "required"=>false}
+    ])
+  end
+
+  specify do
+    expect(subject['paths']['/bookings/{id}']['get']['parameters']).to eql([
+      {"in"=>"path", "name"=>"id", "description"=>nil, "type"=>"integer", "format"=>"int32", "required"=>true}
+    ])
+  end
+
+  specify do
+    expect(subject['paths']['/bookings/{id}']['delete']['parameters']).to eql([
+      {"in"=>"path", "name"=>"id", "description"=>nil, "type"=>"integer", "format"=>"int32", "required"=>true}
+    ])
+  end
+end