diff --git a/patches/workload_module.patch b/patches/workload_module.patch
index b39e78f..1e5d0bd 100644
--- a/patches/workload_module.patch
+++ b/patches/workload_module.patch
@@ -206,6 +206,15 @@
    include WorkloadsHelper
  
    before_action :authorize_global, only: %i[index]
+@@ -40,7 +40,7 @@ class WorkloadsController < ApplicationController
+                                        time_span: @time_span_to_display,
+                                        today: @today)
+ 
+-      @months_to_render = WlDateTools.months_in_time_span(@time_span_to_display)
++      @months_to_render = RedmineWorkload::WlDateTools.months_in_time_span(@time_span_to_display)
+       @workload_data = user_workload.hours_per_user_issue_and_day
+ 
+       @group_workload = GroupWorkload.new(users: @users,
 --- a/plugins/redmine_workload/app/models/user_workload.rb
 +++ b/plugins/redmine_workload/app/models/user_workload.rb
 @@ -6,8 +6,8 @@