diff --git a/src/blupi.cxx b/src/blupi.cxx
index c22f980..2f2e5e4 100644
--- a/src/blupi.cxx
+++ b/src/blupi.cxx
@@ -398,7 +398,7 @@ static bool DoInit (Sint32 argc, char *argv[])
     // Create a window.
     if (g_bFullScreen)
         g_window = SDL_CreateWindow (NAME, 0, 0, LXIMAGE, LYIMAGE,
-                                     SDL_WINDOW_FULLSCREEN | SDL_WINDOW_INPUT_GRABBED);
+                                     SDL_WINDOW_FULLSCREEN | SDL_WINDOW_BORDERLESS | SDL_WINDOW_INPUT_GRABBED);
     else
         g_window = SDL_CreateWindow (NAME, SDL_WINDOWPOS_CENTERED,
                                      SDL_WINDOWPOS_CENTERED, LXIMAGE, LYIMAGE, 0);