diff --git a/man/man1/ranlin.1 b/man/man1/ranlin.1
index c12bca2..6042b14 100644
--- a/man/man1/ranlin.1
+++ b/man/man1/ranlin.1
@@ -19,6 +19,9 @@ specific line is chosen is equal for all lines.
 When no file arguments are given,
 .Nm
 will read from the standard input.
+When multiple file arguments are given,
+.Nm
+will output a random line for each file.
 .Pp
 The options are as follows:
 .Bl -tag -width Ds