diff --git a/modules/database.py b/modules/database.py
index 9a4ba1d..f68db38 100644
--- a/modules/database.py
+++ b/modules/database.py
@@ -1,3 +1,6 @@
+"""Module that provides all database columns and
+creates geospatial index for col_applications"""
+
 from pymongo import MongoClient, GEOSPHERE
 from ujson import loads
 
diff --git a/modules/inline.py b/modules/inline.py
index d0f1a8e..0637c53 100644
--- a/modules/inline.py
+++ b/modules/inline.py
@@ -1,3 +1,6 @@
+"""Module responsible for providing answers to
+all inline queries that bot receives"""
+
 from datetime import datetime
 from os import path, sep
 from app import app, isAnAdmin
diff --git a/modules/scheduled.py b/modules/scheduled.py
index 979c964..ce986ef 100644
--- a/modules/scheduled.py
+++ b/modules/scheduled.py
@@ -1,3 +1,6 @@
+"""Automatically register commands and execute
+some scheduled tasks is the main idea of this module"""
+
 from os import listdir, makedirs, path, sep
 from apscheduler.schedulers.asyncio import AsyncIOScheduler
 from datetime import datetime, timedelta