diff --git a/widgets/+wt/+abstract/BaseViewChart.m b/widgets/+wt/+abstract/BaseViewChart.m
index 439deb2..38520e5 100644
--- a/widgets/+wt/+abstract/BaseViewChart.m
+++ b/widgets/+wt/+abstract/BaseViewChart.m
@@ -31,7 +31,8 @@
     end %properties
 
 
-    properties (Transient, NonCopyable, UsedInUpdate = true, Access = private)
+    properties (Transient, NonCopyable, UsedInUpdate = true, ...
+            GetAccess = private, SetAccess = protected)
 
         % Internal flag to trigger an update call
         Dirty_ (1,1) logical = false