diff --git a/src/drivers/win/res.rc b/src/drivers/win/res.rc
index 0244ee0f..061661d3 100644
--- a/src/drivers/win/res.rc
+++ b/src/drivers/win/res.rc
@@ -841,7 +841,7 @@ BEGIN
 END
 
 DEBUGGER DIALOGEX 54, 74, 548, 305
-STYLE DS_SETFONT | DS_3DLOOK | WS_MINIMIZEBOX | WS_POPUP | WS_VISIBLE | WS_CAPTION | WS_SYSMENU | WS_THICKFRAME
+STYLE DS_SETFONT | DS_3DLOOK | WS_MINIMIZEBOX | WS_MAXIMIZEBOX | WS_POPUP | WS_VISIBLE | WS_CAPTION | WS_SYSMENU | WS_THICKFRAME
 CAPTION "6502 Debugger"
 FONT 8, "MS Sans Serif", 0, 0, 0x0
 BEGIN