diff --git a/lib/noosfero/api/session.rb b/lib/noosfero/api/session.rb
index 78ebe6a..b72d909 100644
--- a/lib/noosfero/api/session.rb
+++ b/lib/noosfero/api/session.rb
@@ -43,27 +43,16 @@ module Noosfero
         # this return is just to improve the clarity of the execution path
         return unless test_captcha(remote_ip, params, environment)
         user = User.new(attrs)
-        if params[:name].present?
-          #adds user and person
-          person = Person.new(name: params[:name], identifier: user.login)
-          user.person = person
-          if user.signup
-              user.generate_private_token! if user.activated?
-              present user, :with => Entities::UserLogin
-          else
-            user.destroy
-            message = user.errors.as_json.merge(person.errors.as_json).to_json
-            render_api_error!(message, 400)
-          end
+        params[:name].present? ? name = params[:name] : name = attrs[:email]
+        person = Person.new(name: name, identifier: user.login)
+        user.person = person
+        if user.signup
+          user.generate_private_token! if user.activated?
+          present user, :with => Entities::UserLogin
         else
-          #adds user only
-          if user.save
-              user.generate_private_token! if user.activated?
-              present user, :with => Entities::UserLogin
-          else
-            message = user.errors.to_json
-            render_api_error!(message, 400)
-          end
+          user.destroy
+          message = user.errors.as_json.merge(person.errors.as_json).to_json
+          render_api_error!(message, 400)
         end
       end
 
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libgit2 0.21.2