diff --git a/reclass/datatypes/applications.py b/reclass/datatypes/applications.py
index 4f6ee10b..c7f00e41 100644
--- a/reclass/datatypes/applications.py
+++ b/reclass/datatypes/applications.py
@@ -54,6 +54,7 @@ def merge_unique(self, iterable):
                     self._items.remove(negation)
                 except ValueError:
                     pass
+            self._negations.extend(iterable._negations)
             iterable = iterable.as_list()
         for i in iterable:
             self.append_if_new(i)