diff --git a/docs/security.rst b/docs/security.rst
index 3772351228e2bb60553356427b361aba889197b5..d6d5b9cfb8c064d89817ab2b8e4b6b844cadbfdd 100644
--- a/docs/security.rst
+++ b/docs/security.rst
@@ -9,7 +9,7 @@ By default, the resources of your OAS cluster will be exposed to the whole
 internet (although they are password protected by the single-sign-on system).
 If you like to limit who can access your cluster resources you can configure
 the OAS ingress (`ingress-nginx <https://kubernetes.github.io/ingress-nginx>`__)
-to only accept connections from a certain IP addr/range.
+to only accept connections from a certain IP address or range.
 Add a file in the ``CLUSTER_DIR/group_vars/all/`` directory, i.e. named
 ``ingress.yml`` with the following content: