diff --git a/tmux.1 b/tmux.1
index ca470ea2..3441e71b 100644
--- a/tmux.1
+++ b/tmux.1
@@ -2947,7 +2947,7 @@ specifies a prefix to print before each key and
 .Fl 1
 lists only the first matching key.
 .Fl a
-lists the command for keys that do have a note rather than skipping them.
+lists the command for keys that do not have a note rather than skipping them.
 .It Xo Ic send-keys
 .Op Fl FHlMRX
 .Op Fl N Ar repeat-count