diff --git a/lib/tasks/deployment/20230316125244_fix_champ_type_mismatch.rake b/lib/tasks/deployment/20230316125244_fix_champ_type_mismatch.rake
new file mode 100644
index 000000000..cacc33e49
--- /dev/null
+++ b/lib/tasks/deployment/20230316125244_fix_champ_type_mismatch.rake
@@ -0,0 +1,25 @@
+namespace :after_party do
+  desc 'Deployment task: fix_champ_type_mismatch'
+  task fix_private_champ_type_mismatch: :environment do
+    puts "Running deploy task 'fix_champ_type_mismatch'"
+
+    champs = Champ.private_only
+
+    # count of large champs count is too slow, so we're using an progress approximation based on id
+    progress = ProgressReport.new(champs.last.id)
+
+    champs.includes(:type_de_champ).in_batches.each_record do |champ|
+      type_champ = champ.type_de_champ.type_champ
+      expected_type = "Champs::#{type_champ.classify}Champ"
+
+      if champ.type != expected_type
+        puts "Fixing champ #{champ.id} (#{champ.type} -> #{expected_type})"
+        champ.update_column(:type, expected_type)
+      end
+
+      progress.set(champ.id)
+    end
+
+    progress.finish
+  end
+end
diff --git a/lib/tasks/task_helper.rb b/lib/tasks/task_helper.rb
index 0057a21be..3a8534183 100644
--- a/lib/tasks/task_helper.rb
+++ b/lib/tasks/task_helper.rb
@@ -40,6 +40,14 @@ class ProgressReport
     end
   end
 
+  def set(count)
+    set_progress(count: count)
+
+    if @per_10_000 % 10 == 0
+      print_progress
+    end
+  end
+
   def finish
     if @count > 0 && @per_10_000 != 10_000
       set_progress(total: @count)