diff --git a/mlair/helpers/geofunctions.py b/mlair/helpers/geofunctions.py
index d27bc0bf5256f9e523644b4ad98164cd57012b40..4477b3e32c359789f006cad919ddeba07c42b318 100644
--- a/mlair/helpers/geofunctions.py
+++ b/mlair/helpers/geofunctions.py
@@ -101,11 +101,6 @@ def bearing_angle(lat1: xr_int_float, lon1: xr_int_float,
     :return: initial bearing angle (forward azimuth) in degree
 
     """
-    lat1_orig = lat1
-    lon1_orig = lon1
-    lat2_orig = lat2
-    lon2_orig = lon2
-
     if to_radians:
         (lat1, lon1), (lat2, lon2) = deg2rad_all_points(lat1, lon1, lat2, lon2)