1 files changed, 7 insertions, 0 deletions
diff --git a/tikzit/src/data/tikzdocument.cpp b/tikzit/src/data/tikzdocument.cpp
index c8d4ce9..13d4c6e 100644
--- a/tikzit/src/data/tikzdocument.cpp
+++ b/tikzit/src/data/tikzdocument.cpp
@@ -13,6 +13,13 @@ TikzDocument::TikzDocument(QObject *parent) : QObject(parent)
     _parseSuccess = true;
     _fileName = "";
     _shortName = "";
+    _undoStack = new QUndoStack();
+}
+
+TikzDocument::~TikzDocument()
+{
+    delete _graph;
+    delete _undoStack;
 }
 
 QUndoStack *TikzDocument::undoStack() const