diff --git a/geojson.js b/geojson.js
index 8550a87..6afffb7 100644
--- a/geojson.js
+++ b/geojson.js
@@ -270,7 +270,7 @@
       throw new InvalidGeometryError(item, params);
     }
 
-    return geom;
+    return geom.coordinates? geom : null;
   }
 
   // Returns the function to be used to