diff --git a/Clipper/src/de/lighti/clipper/DefaultClipper.java b/Clipper/src/de/lighti/clipper/DefaultClipper.java
index 9b01cb4..5a39f24 100644
--- a/Clipper/src/de/lighti/clipper/DefaultClipper.java
+++ b/Clipper/src/de/lighti/clipper/DefaultClipper.java
@@ -1216,7 +1216,7 @@ private boolean executeInternal() {
                     continue;
                 }
                 else if (outRec.isOpen) {
-                    fixupOutPolygon( outRec );
+                    fixupOutPolyline( outRec );
                 }
                 else {
                     fixupOutPolygon( outRec );