diff --git a/app/pdf-viewer/buffer.py b/app/pdf-viewer/buffer.py
index 0149416..2932b96 100755
--- a/app/pdf-viewer/buffer.py
+++ b/app/pdf-viewer/buffer.py
@@ -162,7 +162,7 @@ class AppBuffer(Buffer):
             self.message_to_emacs.emit(content)
             self.buffer_widget.cleanup_select()
         else:
-            self.message_to_emacs.emit("Cannot copy, you haven't select anything!")
+            self.message_to_emacs.emit("Cannot copy, you should double click your mouse and hover through the text on the PDF. Don't click and drag!")
 
     def add_annot_highlight(self):
         if self.buffer_widget.is_select_mode: