diff --git a/src/Model/BoundaryConditionsAdisTS/BoundaryConditionAdisTS.py b/src/Model/BoundaryConditionsAdisTS/BoundaryConditionAdisTS.py
index f48f3209..5376cba1 100644
--- a/src/Model/BoundaryConditionsAdisTS/BoundaryConditionAdisTS.py
+++ b/src/Model/BoundaryConditionsAdisTS/BoundaryConditionAdisTS.py
@@ -548,11 +548,11 @@ class BoundaryConditionAdisTS(SQLSubModel):
         self.modified()
 
     def delete_i(self, indexes):
-        self._data = list(
+        list(
             map(
                 lambda e: e[1].set_as_deleted(),
                 filter(
-                    lambda e: e[0] not in indexes,
+                    lambda e: e[0] in indexes,
                     enumerate(self.data)
                 )
             )
diff --git a/src/View/BoundaryConditionsAdisTS/UndoCommand.py b/src/View/BoundaryConditionsAdisTS/UndoCommand.py
index d7ac21a1..63a340ee 100644
--- a/src/View/BoundaryConditionsAdisTS/UndoCommand.py
+++ b/src/View/BoundaryConditionsAdisTS/UndoCommand.py
@@ -90,7 +90,7 @@ class DelCommand(QUndoCommand):
 
         self._bc = []
         for row in rows:
-            self._bc.append((row, self._bcs.get(row)))
+            self._bc.append((row, self._bcs._lst[row]))
         self._bc.sort()
 
     def undo(self):