diff --git a/bin/OpenSimDefaults.ini b/bin/OpenSimDefaults.ini
index 8582b94a2e..456dcd6e8a 100644
--- a/bin/OpenSimDefaults.ini
+++ b/bin/OpenSimDefaults.ini
@@ -756,6 +756,7 @@
 
 	; Support viewers object cache, default true
 	; users may need to reduce viewer bandwitdh if some prims or terrain parts fail to rez.
+	; change to false if you need to use old viewers that do not support this feature
 	;
 	; SupportViewerObjectsCache = true