diff --git a/doc/mboxgrep.1 b/doc/mboxgrep.1
index 8912f44..76888fc 100644
--- a/doc/mboxgrep.1
+++ b/doc/mboxgrep.1
@@ -72,8 +72,8 @@ Do not lock files.  This option is meaningful only if a mbox folder (see below)
 is scanned.
 .IP "-c, --count"
 Suppress normal output and print a count of matching messages.
-.IP "-o, --output=FOLDER"
-Suppress normal output and write messages to destination folder FOLDER instead.
+.IP "-o, --output=MAILBOX"
+Suppress normal output and write messages to destination MAILBOX instead.
 .IP "-p, --pipe=COMMAND"
 Pipe each found message to COMMAND
 .IP "-d, --delete"
diff --git a/doc/mboxgrep.info b/doc/mboxgrep.info
index 0ad5019..e35151b 100644
Binary files a/doc/mboxgrep.info and b/doc/mboxgrep.info differ
diff --git a/doc/mboxgrep.texi b/doc/mboxgrep.texi
index 572aa7c..b446614 100644
--- a/doc/mboxgrep.texi
+++ b/doc/mboxgrep.texi
@@ -171,10 +171,9 @@ Use with extreme caution.
 @itemx -nd
 Ignore duplicate messages.
 
-@item --output=FOLDER
-@itemx -o FOLDER
-Suppress normal output and write messages to destination folder FOLDER
-instead. 
+@item --output=MAILBOX
+@itemx -o MAILBOX
+Suppress normal output and write messages to destination MAILBOX instead.
 
 Note that @code{mboxgrep} assumes the output folder is of the same format 
 as the input folder.  Currently there is no possibility to convert folders.