diff --git a/ensure_db.py b/ensure_db.py
index 75f4d3d..f39f2cf 100644
--- a/ensure_db.py
+++ b/ensure_db.py
@@ -162,7 +162,8 @@ def ensure_database_structure():
                     AUTO_ID INT AUTO_INCREMENT PRIMARY KEY,
                     ID VARCHAR(255),
                     TITLE VARCHAR(2048),
-                    description TEXT
+                    description TEXT,
+                    tg_id BIGINT NULL
                 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4
             '''
         }
@@ -224,7 +225,8 @@ def ensure_database_structure():
                 {'column': 'auto_added', 'type': 'BOOLEAN DEFAULT 0'}
             ],
             'categories': [
-                {'column': 'description', 'type': 'TEXT'}
+                {'column': 'description', 'type': 'TEXT'},
+                {'column': 'tg_id', 'type': 'BIGINT NULL'}
             ],
             'events': [
                 {'column': 'authors', 'type': 'VARCHAR(255)'}