diff --git a/hyp3_gamma/rtc/rtc_sentinel.py b/hyp3_gamma/rtc/rtc_sentinel.py
index ba53ec9a..6f7c253e 100755
--- a/hyp3_gamma/rtc/rtc_sentinel.py
+++ b/hyp3_gamma/rtc/rtc_sentinel.py
@@ -26,7 +26,7 @@
 from hyp3lib.rtc2color import rtc2color
 from hyp3lib.system import gamma_version
 from osgeo import gdal, gdalconst, ogr
-from s1_orbits import fetch_for_scene, OrbitNotFoundError
+from s1_orbits import OrbitNotFoundError, fetch_for_scene
 
 import hyp3_gamma
 from hyp3_gamma.dem import get_geometry_from_kml, prepare_dem_geotiff