diff --git a/aqt/editor.py b/aqt/editor.py
index 5b93c60e9..4a42351bf 100644
--- a/aqt/editor.py
+++ b/aqt/editor.py
@@ -536,6 +536,7 @@ class Editor(object):
         "Make NOTE the current note."
         self.note = note
         self.currentField = 0
+        self.disableButtons()
         # change timer
         if self.note:
             self.web.setHtml(_html % (