diff --git a/core/src/main/resources/reference.conf b/core/src/main/resources/reference.conf
index 7a56a18e9f1..7b1c43f8bea 100644
--- a/core/src/main/resources/reference.conf
+++ b/core/src/main/resources/reference.conf
@@ -574,7 +574,9 @@ datastax-java-driver {
       # Modifiable at runtime: no
       # Overridable in a profile: yes
       allow-for-local-consistency-levels = false
+      
       # Ordered preference list of remote dc's (in order) optionally supplied for automatic failover. While building a query plan, the driver uses the DC's supplied in order together with max-nodes-per-remote-dc
+      # Users are not required to specify all DCs, when listing preferences via this config
       # Required: no
       # Modifiable at runtime: no
       # Overridable in a profile: no