diff --git a/README.md b/README.md
index 24e17a6..5ca9676 100644
--- a/README.md
+++ b/README.md
@@ -254,7 +254,7 @@ thcssh()
     echo -e 'PS1="{THC} \[\\033[36m\]\\u\[\\033[m\]@\[\\033[32m\]\\h:\[\\033[33;1m\]\\w\[\\033[m\]# "\e[0m'
     ttyp=$(stty -g)
     stty raw -echo opost
-    [[ $(ssh -V 2>&1) == OpenSSH_7* ]] && a="no"
+    [[ $(ssh -V 2>&1) == OpenSSH_[67]* ]] && a="no"
     ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking="${a:-accept-new}" -T \
         "$@" \
         "unset SSH_CLIENT SSH_CONNECTION; TERM=xterm-256color BASH_HISTORY=/dev/null exec -a [ntp] script -qc 'exec -a [uid] /bin/bash -i' /dev/null"