1 files changed, 1 insertions, 0 deletions
diff --git a/README b/README
index 6a77db34a7..66f74dfd57 100644
--- a/README
+++ b/README
@@ -375,6 +375,7 @@ arguments - see the next section.
   --aspect-ratio           Enable aspect ratio correction
   --render-mode=MODE       Enable additional render modes (cga, ega, hercGreen
                            hercAmber, amiga)
+  --force-1x-overlay       Make inner GUI 320x200
 
   --alt-intro              Use alternative intro for CD versions of Beneath a
                            Steel Sky and Flight of the Amazon Queen