diff --git a/app/controllers/api/v1/platforms_controller.rb b/app/controllers/api/v1/platforms_controller.rb
index f352bd7df..97e155bc8 100644
--- a/app/controllers/api/v1/platforms_controller.rb
+++ b/app/controllers/api/v1/platforms_controller.rb
@@ -32,17 +32,17 @@ class Api::V1::PlatformsController < Api::V1::BaseController
   end
 
   def create
-    platform_params = params[:platform] || {}
-    owner = User.where(id: platform_params[:owner_id]).first
-    @platform       = Platform.new platform_params
+    pp = params[:platform] || {}
+    owner = User.find_by(id: pp[:owner_id])
+    @platform       = Platform.new(platform_params)
     @platform.owner = owner || get_owner
     create_subject @platform
   end
 
   def update
-    platform_params = params[:platform] || {}
-    owner = User.where(id: platform_params[:owner_id]).first
-    platform_params[:owner] = owner if owner
+    pp = params[:platform] || {}
+    owner = User.find_by(id: pp[:owner_id])
+    pp[:owner] = owner if owner
     update_subject @platform
   end
 
@@ -80,6 +80,10 @@ class Api::V1::PlatformsController < Api::V1::BaseController
 
   private
 
+  def platform_params
+    subject_params(Platform)
+  end
+
   # Private: before_action hook which loads Platform.
   def load_platform
     authorize @platform = Platform.find(params[:id])
diff --git a/app/policies/platform_policy.rb b/app/policies/platform_policy.rb
index d333b2557..da162f9f9 100644
--- a/app/policies/platform_policy.rb
+++ b/app/policies/platform_policy.rb
@@ -62,6 +62,27 @@ class PlatformPolicy < ApplicationPolicy
     record.personal? && ( is_admin? || owner? )
   end
 
+  # Public: Get list of parameters that the user is allowed to alter.
+  #
+  # Returns Array
+  def permitted_attributes
+    %i(
+      admin_id
+      automatic_metadata_regeneration
+      default_branch
+      description
+      distrib_type
+      name
+      owner
+      parent_platform_id
+      platform_arch_settings_attributes
+      platform_type
+      released
+      term
+      visibility
+    )
+  end
+
   class Scope < Scope
 
     def related