diff --git a/doc/foot.1.scd b/doc/foot.1.scd
index 889f31dc..08c65e46 100644
--- a/doc/foot.1.scd
+++ b/doc/foot.1.scd
@@ -154,6 +154,22 @@ _Examples_:
 - Dina:weight=bold:slant=italic
 - Courier New:size=12
 
+# ALT/META CHARACTERS
+
+By default, foot prefixes meta characters with *ESC*. This corresponds
+to XTerm's *metaSendsEscape* option set to *true*.
+
+This can be disabled programatically with *\E[?1036l* (and enabled
+again with *\E[?1036h*).
+
+When disabled, foot will instead set the 8:th bit of meta character
+and then UTF-8 encode it. This corresponds to XTerm's *eightBitMeta*
+option set to *true*.
+
+This can also be disabled programatically with *rmm* (Reset Meta Mode,
+*\E[?1034l*), and enabled again with *smm* (Set Meta Mode,
+*\E[?1034h*).
+
 
 # CONFIGURATION