diff --git a/tmux.1 b/tmux.1
index c8fab92c..2764626e 100644
--- a/tmux.1
+++ b/tmux.1
@@ -747,7 +747,7 @@ behave like
 .Ic attach-session
 if
 .Ar session-name
-already exists; in the case,
+already exists; in this case,
 .Fl D
 behaves like
 .Fl d