diff --git a/frontend/ui/widget/inputtext.lua b/frontend/ui/widget/inputtext.lua
index b37ddb23c..1595cfbea 100644
--- a/frontend/ui/widget/inputtext.lua
+++ b/frontend/ui/widget/inputtext.lua
@@ -542,7 +542,7 @@ function InputText:initKeyboard()
     if self.input_type == "number" then
         keyboard_layer = 4
     end
-    self.key_events = nil
+    self.key_events = {}
     self.keyboard = Keyboard:new{
         keyboard_layer = keyboard_layer,
         inputbox = self,
diff --git a/frontend/ui/widget/screensaverwidget.lua b/frontend/ui/widget/screensaverwidget.lua
index 422b8fbf8..6fb708ce5 100644
--- a/frontend/ui/widget/screensaverwidget.lua
+++ b/frontend/ui/widget/screensaverwidget.lua
@@ -95,7 +95,7 @@ function ScreenSaverWidget:setupGestureEvents()
             InputContainer.handleEvent(this, event)
             return true
         end
-        self.key_events = nil -- also disable exit with keys
+        self.key_events = {} -- also disable exit with keys
     end
 end