diff --git a/measprocess/geospatial.py b/measprocess/geospatial.py
index 90e851b5f5c06b262618b383024b4dff5b3a6de9..d426cc683e392af6809242dac002799785f0624c 100644
--- a/measprocess/geospatial.py
+++ b/measprocess/geospatial.py
@@ -86,7 +86,7 @@ def get_geoseries_blockages(measurement_coords : gpd.GeoSeries, retries : int =
 
     blockages = gpd.GeoSeries(
         Polygon(
-            ((node.lon, node.lat) for node in way.nodes)
+            ((node.lon, node.lat) for node in way.nodes if len(way.nodes)>2) # Polygon needs at least 3 nodes 
         ) for way in result.ways
     ).set_crs("EPSG:4326")