diff --git a/lib/wttr.py b/lib/wttr.py
index d369d4f..1593651 100644
--- a/lib/wttr.py
+++ b/lib/wttr.py
@@ -10,6 +10,7 @@ patch_all()
 import os
 import re
 import time
+import dateutil
 
 from translations import get_message, FULL_TRANSLATION, PARTIAL_TRANSLATION, SUPPORTED_LANGS
 from globals import WEGO, PYPHOON, CACHEDIR, ANSI2HTML, \