diff --git a/dynamic_host_configuration_please.org b/dynamic_host_configuration_please.org
index 9507213..9d84b2c 100644
--- a/dynamic_host_configuration_please.org
+++ b/dynamic_host_configuration_please.org
@@ -60,7 +60,7 @@ on.
 People came up with all kinds of weird shell scripts that would run in
 the background or triggered by [[https://man.openbsd.org/cron.8][cron(8)]] to notice when the laptop moved
 to a different Wi-Fi. The script would then call ifconfig(8) to
-reconfigure Wi-Fi from a list of networks it new about. This was all
+reconfigure Wi-Fi from a list of networks it knew about. This was all
 incredibly fragile and not the OpenBSD way.
 
 Peter Hessler (phessler@), with the help of Stefan Sperling (stsp@)