diff --git a/man/tio.1.in b/man/tio.1.in
index 264f953..e264a64 100644
--- a/man/tio.1.in
+++ b/man/tio.1.in
@@ -948,6 +948,16 @@ Receive file from device by rz command:
 
 $ tio --exec '?rz -b' /dev/ttyUSB0
 
+.TP
+Send file to device by gkermit command:
+
+$ tio --exec '?gkermit -XSs file' /dev/ttyUSB0
+
+.TP
+Receive file from device by gkermit command:
+
+$ tio --exec '?gkermit -XSr' /dev/ttyUSB0
+
 
 .SH "WEBSITE"
 .PP
diff --git a/man/tio.1.txt b/man/tio.1.txt
index 86ab7c1..76df0ab 100644
--- a/man/tio.1.txt
+++ b/man/tio.1.txt
@@ -778,11 +778,19 @@ EXAMPLES
 
        Send file to device by sz command:
 
-              $ tio --exec "?sz -b file" /dev/ttyUSB0
+              $ tio --exec '?sz -b file' /dev/ttyUSB0
 
        Receive file from device by rz command:
 
-              $ tio --exec "?rz -b" /dev/ttyUSB0
+              $ tio --exec '?rz -b' /dev/ttyUSB0
+
+       Send file to device by gkermit command:
+
+              $ tio --exec '?gkermit -XSs file' /dev/ttyUSB0
+
+       Receive file from device by gkermit command:
+
+              $ tio --exec '?gkermit -XSr' /dev/ttyUSB0
 
 WEBSITE
        Visit https://tio.github.io