1 files changed, 2 insertions, 0 deletions

diff --git a/undo.h b/undo.h
index a32d02a..32bb2d5 100644
--- a/undo.h
+++ b/undo.h
@@ -18,6 +18,8 @@ public:
 
 	gint pos;
 
+	virtual ~UndoToken() {}
+
 	virtual void run() = 0;
 };