diff --git a/novelwriter/tools/manuscript.py b/novelwriter/tools/manuscript.py
index c3dac96b..92165df6 100644
--- a/novelwriter/tools/manuscript.py
+++ b/novelwriter/tools/manuscript.py
@@ -475,6 +475,7 @@ class GuiManuscript(NToolDialog):
     def _updateBuildsList(self) -> None:
         """Update the list of available builds."""
         self.buildList.clear()
+        self._buildMap.clear()
         for key, name in self._builds.builds():
             bItem = QListWidgetItem()
             bItem.setText(name)