diff --git a/app/app.py b/app/app.py
index 6059102aefac6976992410022bb2812c3260745f..32f635e2673fa57427ea289aec7cc5596606dfe7 100644
--- a/app/app.py
+++ b/app/app.py
@@ -2,6 +2,7 @@ from flask import Flask
 from flask import request
 from flask import render_template
 import json
+import os
 
 from ipmd_weatherdata import WeatherData, weatherdata_utils