diff --git a/mlair/helpers/geofunctions.py b/mlair/helpers/geofunctions.py
index 9fe6b2b70881ec74db3e3431eddd56de5fe39f91..3082b5633ae954611a859f23c42a91f4e9cb00de 100644
--- a/mlair/helpers/geofunctions.py
+++ b/mlair/helpers/geofunctions.py
@@ -334,7 +334,7 @@ class VectorRotate:
 
     def ull_vll2wdir(self, ull, vll):
         """
-        Conbert u, v to wind direction.
+        Convert u, v to wind direction.
 
         :param ull: Wind's u-component
         :type ull: