diff --git a/README.md b/README.md
index 23c891a..fdeacde 100644
--- a/README.md
+++ b/README.md
@@ -25,7 +25,7 @@ embedded developers and hackers.
 The command-line interface is straightforward as reflected in the output from
 'tio --help':
 ```
-    Usage: tio [<options>] <tty-device>
+    Usage: tio [<options>] <tty-device|config>
 
     Options:
       -b, --baudrate <bps>        Baud rate (default: 115200)
@@ -45,9 +45,11 @@ The command-line interface is straightforward as reflected in the output from
       -v, --version               Display version
       -h, --help                  Display help
 
-    See the man page for more details.
+    Options may be set via configuration file.
 
     In session, press ctrl-t q to quit.
+
+    See the man page for more details.
 ```
 
 The only option which requires a bit of elaboration is perhaps the
diff --git a/man/tio.1.in b/man/tio.1.in
index f114af0..f129dc6 100644
--- a/man/tio.1.in
+++ b/man/tio.1.in
@@ -6,7 +6,7 @@ tio \- a simple serial terminal I/O tool
 .SH "SYNOPSIS"
 .PP
 .B tio
-.RI "[" <options> "] " "<tty-device/config>"
+.RI "[" <options> "] " "<tty-device|config>"
 
 .SH "DESCRIPTION"
 .PP
diff --git a/src/options.c b/src/options.c
index 5259c14..f0b88f3 100644
--- a/src/options.c
+++ b/src/options.c
@@ -58,7 +58,7 @@ struct option_t option =
 
 void print_help(char *argv[])
 {
-    printf("Usage: %s [<options>] <tty-device/config>\n", argv[0]);
+    printf("Usage: %s [<options>] <tty-device|config>\n", argv[0]);
     printf("\n");
     printf("Options:\n");
     printf("  -b, --baudrate <bps>        Baud rate (default: 115200)\n");
@@ -78,10 +78,13 @@ void print_help(char *argv[])
     printf("  -v, --version               Display version\n");
     printf("  -h, --help                  Display help\n");
     printf("\n");
-    printf("See the man page for more details.\n");
+    printf("Options may be set via configuration file.\n");
     printf("\n");
     printf("In session, press ctrl-t q to quit.\n");
     printf("\n");
+    printf("See the man page for more details.\n");
+    printf("\n");
+
 }
 
 const char* timestamp_token(enum timestamp_t timestamp)