diff --git a/man/ttyd.1 b/man/ttyd.1
index 826ea5f..fee8007 100644
--- a/man/ttyd.1
+++ b/man/ttyd.1
@@ -243,7 +243,7 @@ Then open http://localhost:8080 with a browser, you will get a bash shell with d
 .IP \(bu 2
 If you want to login with your system accounts on the web browser, run \fB\fCttyd login\fR\&.
 .IP \(bu 2
-You can even run a none shell command like vim, try: \fB\fCttyd vim\fR, the web browser will show you a vim editor.
+You can even run a non-shell command like vim, try: \fB\fCttyd vim\fR, the web browser will show you a vim editor.
 .IP \(bu 2
 Sharing single process with multiple clients: \fB\fCttyd tmux new -A -s ttyd vim\fR, run \fB\fCtmux new -A -s ttyd\fR to connect to the tmux session from terminal.
 
diff --git a/man/ttyd.man.md b/man/ttyd.man.md
index 98497cb..af583ad 100644
--- a/man/ttyd.man.md
+++ b/man/ttyd.man.md
@@ -150,7 +150,7 @@ ttyd -p 8080 bash -x
   Then open http://localhost:8080 with a browser, you will get a bash shell with debug mode enabled. More examples:
 
   - If you want to login with your system accounts on the web browser, run `ttyd login`.
-  - You can even run a none shell command like vim, try: `ttyd vim`, the web browser will show you a vim editor.
+  - You can even run a non-shell command like vim, try: `ttyd vim`, the web browser will show you a vim editor.
   - Sharing single process with multiple clients: `ttyd tmux new -A -s ttyd vim`, run `tmux new -A -s ttyd` to connect to the tmux session from terminal.
 
 # SSL how-to