diff --git a/src/pyaro/timeseries/Filter.py b/src/pyaro/timeseries/Filter.py
index 42398fe..c26a1c0 100644
--- a/src/pyaro/timeseries/Filter.py
+++ b/src/pyaro/timeseries/Filter.py
@@ -1304,12 +1304,14 @@ def _update_topo_file_path(self, lat: float, lon: float) -> bool:
                 if lon < metadata[file]["w"] or lon > metadata[file]["e"]:
                     continue
 
+                self._topo_file = self._topo / file
+                break
+
             if file is None:
                 raise Exception(
                     f"No matching topography file found for coordinate pair (lat={lat:.6f}; lon={lon:.6f})"
                 )
 
-            self._topo_file = self._topo / file
         else:
             raise FileNotFoundError