diff --git a/etc/prefs.csh-EXAMPLE b/etc/prefs.csh-EXAMPLE
index 97a4a4374..f8f643355 100644
--- a/etc/prefs.csh-EXAMPLE
+++ b/etc/prefs.csh-EXAMPLE
@@ -146,4 +146,12 @@
 #setenv ParaView_VERSION git        # eg, cvs/git version
 #setenv ParaView_MAJOR 3.7
 
+# System identifier for the OpenFOAM CDash test harness on openfoam-extend
+#
+# By default, your system FQN/hostname will be used as the system identifier
+# when publishing your test harness results on the OpenFOAM CDash server
+# on openfoam-extend.
+# You can override your identifier using this environment variable
+#setenv CDASH_SUBMIT_LOCAL_HOST_ID choose_your_CDash_system_identifer
+
 # ----------------------------------------------------------------- end-of-file