diff --git a/man/tio.1.in b/man/tio.1.in
index eb0338d..aaaf8a5 100644
--- a/man/tio.1.in
+++ b/man/tio.1.in
@@ -205,8 +205,8 @@ Strip control characters and escape sequences from log.
 .TP
 .BR \-m ", " "\-\-map " \fI<flags>
 
-Map (replace, translate) characters on input to the serial device or output
-from the serial device. The following mapping flags are supported:
+Map (replace, translate) characters on input from the serial device or output
+to the serial device. The following mapping flags are supported:
 
 .RS
 .TP 12n
diff --git a/man/tio.1.txt b/man/tio.1.txt
index eeac82c..46afb5e 100644
--- a/man/tio.1.txt
+++ b/man/tio.1.txt
@@ -158,7 +158,7 @@ OPTIONS
 
        -m, --map <flags>
 
-              Map (replace, translate) characters on input to the serial device or output from the serial device. The following mapping flags are supported:
+              Map (replace, translate) characters on input from the serial device or output to the serial device. The following mapping flags are supported:
 
               ICRNL       Map CR to NL on input (unless IGNCR is set)