diff --git a/src/domain/UBGraphicsPolygonItem.cpp b/src/domain/UBGraphicsPolygonItem.cpp
index 3ba4861c..4effa158 100644
--- a/src/domain/UBGraphicsPolygonItem.cpp
+++ b/src/domain/UBGraphicsPolygonItem.cpp
@@ -114,6 +114,9 @@ UBGraphicsPolygonItem::~UBGraphicsPolygonItem()
 
 void UBGraphicsPolygonItem::setStrokesGroup(UBGraphicsStrokesGroup *group)
 {
+    if (mStroke)
+        mStroke->remove(this);
+
     mpGroup = group;
 }