diff --git a/novelwriter/core/project.py b/novelwriter/core/project.py
index be383d0e..bc121b74 100644
--- a/novelwriter/core/project.py
+++ b/novelwriter/core/project.py
@@ -174,6 +174,7 @@ class NWProject:
         project entry and a document file if it exists.
         """
         if self._tree.checkType(tHandle, nwItemType.FILE):
+            SHARED.closeDocument(tHandle)
             doc = self._storage.getDocument(tHandle)
             if not doc.deleteDocument():
                 SHARED.error(
diff --git a/novelwriter/shared.py b/novelwriter/shared.py
index 7455b834..cdeb7614 100644
--- a/novelwriter/shared.py
+++ b/novelwriter/shared.py
@@ -175,10 +175,12 @@ class SharedData(QObject):
         logger.debug("Thread Pool Max Count: %d", QThreadPool.globalInstance().maxThreadCount())
         return
 
-    def closeEditor(self, tHandle: str | None = None) -> None:
+    def closeDocument(self, tHandle: str | None = None) -> None:
         """Close the document editor, optionally a specific document."""
         if tHandle is None or tHandle == self.mainGui.docEditor.docHandle:
             self.mainGui.closeDocument()
+        if tHandle is None or tHandle == self.mainGui.docViewer.docHandle:
+            self.mainGui.closeViewerPanel()
         return
 
     def saveEditor(self, tHandle: str | None = None) -> None:
diff --git a/tests/mocked.py b/tests/mocked.py
index 986fd244..f5df63bf 100644
--- a/tests/mocked.py
+++ b/tests/mocked.py
@@ -20,7 +20,7 @@ along with this program. If not, see <https://www.gnu.org/licenses/>.
 """
 from __future__ import annotations
 
-from PyQt5.QtGui import QIcon, QPixmap
+from PyQt5.QtGui import QFont, QIcon, QPixmap
 from PyQt5.QtWidgets import QWidget
 
 
@@ -68,6 +68,9 @@ class MockTheme:
 
     def __init__(self):
         self.baseIconHeight = 20
+        self.guiFont = QFont()
+        self.guiFontB = QFont()
+        self.guiFontBU = QFont()
         return
 
     def getPixmap(self, *a):