1 files changed, 1 insertions, 1 deletions
diff --git a/src/vmtree.h b/src/vmtree.h
index a80248d..f6b2912 100644
--- a/src/vmtree.h
+++ b/src/vmtree.h
@@ -9,7 +9,7 @@ class VmTree : public QTreeView {
     Q_OBJECT
 
   public:
-    VmTree(QWidget* parent = 0) : QTreeView(parent) {};
+    VmTree(QWidget* parent = nullptr) : QTreeView(parent) {};
 
     void cursorDown();
     void cursorUp();