diff --git a/src/ce_widget.pas b/src/ce_widget.pas
index fc6028f3..20a0b6ed 100644
--- a/src/ce_widget.pas
+++ b/src/ce_widget.pas
@@ -33,7 +33,6 @@ type
   protected
     fIsDockable: boolean;
     fIsModal: boolean;
-    fID: string;
     // a descendant overrides to implement a periodic update.
     procedure updateLoop; virtual;
     // a descendant overrides to implement an imperative update.