diff --git a/Level.cs b/Level.cs
index 21bb9a3..67dd516 100644
--- a/Level.cs
+++ b/Level.cs
@@ -227,11 +227,14 @@ public void Load(Wadfile.DirectoryEntry wad) {
 		    Line line = Lines[polygon.LineIndexes[i]];
 		    EndpointPolygons[line.EndpointIndexes[0]].Add(polygon);
 		    EndpointPolygons[line.EndpointIndexes[1]].Add(polygon);
-		    EndpointLines[line.EndpointIndexes[0]].Add(line);
-		    EndpointLines[line.EndpointIndexes[1]].Add(line);
 		}
 	    }
 
+	    foreach (Line line in Lines) {
+		EndpointLines[line.EndpointIndexes[0]].Add(line);
+		EndpointLines[line.EndpointIndexes[1]].Add(line);
+	    }
+
 	    for (int i = 0; i < Polygons.Count; ++i) {
 		Polygon polygon = Polygons[i];
 		if (polygon.Type == PolygonType.Platform) {