diff --git a/co2calculator/distances.py b/co2calculator/distances.py
index 892ebc2..57dff59 100644
--- a/co2calculator/distances.py
+++ b/co2calculator/distances.py
@@ -495,7 +495,7 @@ def create_distance_request(
 
     # Validate the spatial data wrt. the mode of transportation
     # And creates a DistanceRequest object containing either StructuredLocation,
-    # TrainStation or Airport objects based on the unser input address_type
+    # TrainStation or Airport objects based on the user input address_type
     # for start and destination, if nothing is given assume StructuredLocation
 
     try: