diff --git a/gramps/gui/plug/quick/_textbufdoc.py b/gramps/gui/plug/quick/_textbufdoc.py
index 56b9e81b5..36621f7d4 100644
--- a/gramps/gui/plug/quick/_textbufdoc.py
+++ b/gramps/gui/plug/quick/_textbufdoc.py
@@ -53,7 +53,7 @@ LEFT,RIGHT,CENTER = 'LEFT','RIGHT','CENTER'
 _WIDTH_IN_CHARS = 72
 
 class DisplayBuf(ManagedWindow):
-    def __init__(self, title, document):
+    def __init__(self, title, document, modal=False):
         self.title = title
         ManagedWindow.__init__(self, document.uistate, [],
                                              document)
@@ -70,6 +70,7 @@ class DisplayBuf(ManagedWindow):
         scrolled_window.add(document.text_view)
         self.window.vbox.pack_start(scrolled_window, True, True, 0)
         self.window.show_all()
+        self.window.set_modal(modal)
 
     def build_menu_names(self, obj):
         return ('View', _('Quick View'))
@@ -154,7 +155,7 @@ class TextBufDoc(BaseDoc, TextDoc):
         if container:
             return DocumentManager(_('Quick View'), self, container)
         else:
-            DisplayBuf(_('Quick View'), self)
+            DisplayBuf(_('Quick View'), self, modal=True)
             return
 
     #--------------------------------------------------------------------