diff --git a/webmin/lang/en b/webmin/lang/en
index 7a767f725..c580d588b 100644
--- a/webmin/lang/en
+++ b/webmin/lang/en
@@ -521,7 +521,7 @@ ca_newmsg2=This form should be used to setup your Webmin server as a certificate
 ca_cn=Authority name
 ca_email=Email address
 ca_ou=Department
-ca_o=Organisation
+ca_o=Organization
 ca_sp=State
 ca_c=Country code
 ca_city=City or locality