diff --git a/lib/tasks/deployment/20220512072704_fix_child_types_de_champ.rake b/lib/tasks/deployment/20220512072704_fix_child_types_de_champ.rake
new file mode 100644
index 000000000..54fdd7755
--- /dev/null
+++ b/lib/tasks/deployment/20220512072704_fix_child_types_de_champ.rake
@@ -0,0 +1,46 @@
+namespace :after_party do
+  desc 'Deployment task: fix_child_types_de_champ'
+  task fix_child_types_de_champ: :environment do
+    puts "Running deploy task 'fix_child_types_de_champ'"
+
+    children = TypeDeChamp.where.not(parent_id: nil).where.missing(:revision_types_de_champ).includes(parent: :revision_types_de_champ)
+    progress = ProgressReport.new(children.count)
+
+    children.find_each do |type_de_champ|
+      type_de_champ.parent.revision_types_de_champ.each do |revision_type_de_champ|
+        ProcedureRevisionTypeDeChamp.create(parent: revision_type_de_champ,
+          type_de_champ: type_de_champ,
+          revision_id: revision_type_de_champ.revision_id,
+          position: type_de_champ.order_place)
+      end
+      progress.inc
+    end
+    progress.finish
+
+    children = TypeDeChamp.where.not(parent_id: nil).includes(:revision_types_de_champ, parent: :revision_types_de_champ)
+    progress = ProgressReport.new(children.count)
+
+    children.find_each do |type_de_champ|
+      prtdcs = type_de_champ.parent.revision_types_de_champ
+      rtdcs = type_de_champ.revision_types_de_champ
+
+      if prtdcs.size > rtdcs.size
+        missing_rtdcs = prtdcs.filter { |prtdc| !prtdc.revision_id.in?(rtdcs.map(&:revision_id)) }
+
+        missing_rtdcs.each do |revision_type_de_champ|
+          ProcedureRevisionTypeDeChamp.create(parent: revision_type_de_champ,
+            type_de_champ: type_de_champ,
+            revision_id: revision_type_de_champ.revision_id,
+            position: type_de_champ.order_place)
+        end
+      end
+      progress.inc
+    end
+    progress.finish
+
+    # Update task as completed.  If you remove the line below, the task will
+    # run with every deploy (or every time you call after_party:run).
+    AfterParty::TaskRecord
+      .create version: AfterParty::TaskRecorder.new(__FILE__).timestamp
+  end
+end