diff --git a/include/EST_UList.h b/include/EST_UList.h
index f7b0f79d..3b6b657e 100644
--- a/include/EST_UList.h
+++ b/include/EST_UList.h
@@ -66,7 +66,7 @@ class EST_UList {
 
 public:
     EST_UList() { init(); };
-    ~ EST_UList() { clear_and_free(NULL); }
+    virtual ~ EST_UList() { clear_and_free(NULL); }
 
     EST_UItem *nth_pointer(int n) const;