diff --git a/src/game_tab/left_panel/board/BoardCanvas.cpp b/src/game_tab/left_panel/board/BoardCanvas.cpp
index 55e16f0..386d593 100644
--- a/src/game_tab/left_panel/board/BoardCanvas.cpp
+++ b/src/game_tab/left_panel/board/BoardCanvas.cpp
@@ -27,6 +27,8 @@ BoardCanvas::BoardCanvas(wxFrame *parent)
 BoardCanvas::~BoardCanvas() {
   delete t;
   delete t_captures;
+  if(adata.buffer!= nullptr)
+    free(adata.buffer);
 }
 
 BoardCanvas::BoardCanvas(wxFrame *parent, std::uint32_t square_width,