1 files changed, 4 insertions, 0 deletions
diff --git a/interactioncanvas.cpp b/interactioncanvas.cpp
index 1c4e54f..28b8e74 100644
--- a/interactioncanvas.cpp
+++ b/interactioncanvas.cpp
@@ -149,6 +149,10 @@ void InteractionCanvas::keyPressEvent(QKeyEvent *keyEvent)
 
     if(!m_Lines.isEmpty() && keyEvent->key() == Qt::Key_Z && keyEvent->modifiers() == Qt::ControlModifier)
     {
+        if(m_SelectedLine == m_Lines.last())
+        {
+            m_SelectedLine = NULL;
+        }
         delete m_Lines.last();
         m_Lines.removeLast();
         update();