diff --git a/visualizer/main.cpp b/visualizer/main.cpp
index 40a721b..ea0a7eb 100644
--- a/visualizer/main.cpp
+++ b/visualizer/main.cpp
@@ -42,6 +42,7 @@ class CDTWidget : public QWidget
         , m_isConformToEdges(false)
         , m_isHidePoints(false)
         , m_isHideSuperTri(false)
+        , m_isDoRuppert(false)
         , m_isRemoveOuter(false)
         , m_isRemoveOuterAndHoles(false)
         , m_isDisplayIndices(false)