diff --git a/winsrc/gui.cpp b/winsrc/gui.cpp
index 8929a05ce..3753a86e9 100644
--- a/winsrc/gui.cpp
+++ b/winsrc/gui.cpp
@@ -41,7 +41,6 @@ HBRUSH GreenBrush, YellowBrush;
 static int GraphStart = 0;
 static double GraphPixelsPerPoint = 1;
 
-static int PlotGridX = 0, PlotGridY = 0;
 static int CursorAPos;
 static int CursorBPos;
 double CursorScaleFactor = 1.0;