diff --git a/app/models/event/synchronized_editor.rb b/app/models/event/synchronized_editor.rb
index 57796f7a..cbb8dc99 100644
--- a/app/models/event/synchronized_editor.rb
+++ b/app/models/event/synchronized_editor.rb
@@ -31,6 +31,7 @@ class Event::SynchronizedEditor < ApplicationRecord
 
   validates :status, presence: true, if: -> { action_connection_change? }
   validates :file_id, presence: true, if: -> { action_editor_change? }
+  validates :session_id, presence: true, if: -> { action_editor_change? }
   validates :editor_action, presence: true, if: -> { action_editor_change? }
   validates :range_start_row, numericality: {only_integer: true, greater_than_or_equal_to: 0}, if: -> { action_editor_change? }
   validates :range_start_column, numericality: {only_integer: true, greater_than_or_equal_to: 0}, if: -> { action_editor_change? }
@@ -53,6 +54,7 @@ class Event::SynchronizedEditor < ApplicationRecord
       action: event_copy.delete(:action),
       editor_action: delta.delete(:action),
       file_id: file[:id],
+      session_id: event_copy.delete(:session_id),
       range_start_row: range[:start][:row],
       range_start_column: range[:start][:column],
       range_end_row: range[:end][:row],
diff --git a/db/migrate/20230908091810_add_session_id_to_events_synrhonized_editor.rb b/db/migrate/20230908091810_add_session_id_to_events_synrhonized_editor.rb
new file mode 100644
index 00000000..9655fe08
--- /dev/null
+++ b/db/migrate/20230908091810_add_session_id_to_events_synrhonized_editor.rb
@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+class AddSessionIdToEventsSynrhonizedEditor < ActiveRecord::Migration[7.0]
+  def change
+    add_column :events_synchronized_editor, :session_id, :uuid, null: true
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 8225c522..1ff0a1dc 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[7.0].define(version: 2023_09_06_163923) do
+ActiveRecord::Schema[7.0].define(version: 2023_09_08_091810) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "pg_trgm"
   enable_extension "pgcrypto"
@@ -168,6 +168,7 @@ ActiveRecord::Schema[7.0].define(version: 2023_09_06_163923) do
     t.jsonb "data"
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
+    t.uuid "session_id"
     t.index ["file_id"], name: "index_events_synchronized_editor_on_file_id"
     t.index ["programming_group_id"], name: "index_events_synchronized_editor_on_programming_group_id"
     t.index ["study_group_id"], name: "index_events_synchronized_editor_on_study_group_id"