diff --git a/frontend/apps/reader/modules/readerstyletweak.lua b/frontend/apps/reader/modules/readerstyletweak.lua
index e70669287..0fbc6fac5 100644
--- a/frontend/apps/reader/modules/readerstyletweak.lua
+++ b/frontend/apps/reader/modules/readerstyletweak.lua
@@ -1171,16 +1171,15 @@ function ReaderStyleTweak:editBookTweak(touchmenu_instance)
             editor.save_callback_called = true
             return true, msg
         end,
-        close_callback = function()
+        close_callback = function(close_status)
             -- save_callback() will always have shown some notification,
-            -- so don't add another one
-            if not editor.save_callback_called then
+            -- so don't add another one.
+            -- If close_status is false, text was modified but then discarded, and
+            -- InputDialog will show our close_discarded_notif_text
+            if not editor.save_callback_called and close_status ~= false then
                 UIManager:show(Notification:new{
-                    text = NOT_MODIFIED_MSG,
+                    text = NOT_MODIFIED_MSG
                 })
-                -- This has to be the same message above and below: when
-                -- discarding, we can't prevent these 2 notifications from
-                -- being shown: having them identical will hide that.
             end
         end,
         close_discarded_notif_text = NOT_MODIFIED_MSG,
diff --git a/frontend/ui/widget/inputdialog.lua b/frontend/ui/widget/inputdialog.lua
index 2091d611d..78055245d 100644
--- a/frontend/ui/widget/inputdialog.lua
+++ b/frontend/ui/widget/inputdialog.lua
@@ -159,6 +159,7 @@ local InputDialog = FocusManager:extend{
                       -- - on success: as the notification text instead of the default one
                       -- - on failure: in an InfoMessage
     close_callback = nil, -- Called when closing (if discarded or saved, after save_callback if saved)
+                          -- (passed true/false if text modified and saved/discarded, nil if closed with text unmodified)
     edited_callback = nil,  -- Called on each text modification
 
     -- For use by TextEditor plugin:
@@ -844,7 +845,7 @@ function InputDialog:_addSaveCloseButtons()
                     cancel_text = self.close_cancel_button_text or _("Cancel"),
                     choice1_text = self.close_discard_button_text or _("Discard"),
                     choice1_callback = function()
-                        if self.close_callback then self.close_callback() end
+                        if self.close_callback then self.close_callback(false) end
                         UIManager:close(self)
                         UIManager:show(Notification:new{
                             text = self.close_discarded_notif_text or _("Changes discarded"),
@@ -863,7 +864,7 @@ function InputDialog:_addSaveCloseButtons()
                                     })
                                 end
                             else -- nil or true
-                                if self.close_callback then self.close_callback() end
+                                if self.close_callback then self.close_callback(true) end
                                 UIManager:close(self)
                                 UIManager:show(Notification:new{
                                     text = msg or _("Saved"),