diff --git a/foot.ini b/foot.ini
index d0c93519..8266b01b 100644
--- a/foot.ini
+++ b/foot.ini
@@ -12,6 +12,7 @@
 # font-bold=<bold variant of regular font>
 # font-italic=<italic variant of regular font>
 # font-bold-italic=<bold+italic variant of regular font>
+# font-size-adjustment=0.5
 # line-height=<font metrics>
 # letter-spacing=0
 # horizontal-letter-offset=0