diff --git a/plugin/number_toggle.vim b/plugin/number_toggle.vim
index eb54b9f..40bec21 100644
--- a/plugin/number_toggle.vim
+++ b/plugin/number_toggle.vim
@@ -1,9 +1,9 @@
 " vim-numbertoggle - Automatic toggling between 'hybrid' and absolute line numbers
 " Maintainer:        <https://jeffkreeftmeijer.com>
-" Version:           2.1.1
+" Version:           2.1.2
 
 augroup numbertoggle
   autocmd!
-  autocmd BufEnter,FocusGained,InsertLeave,WinEnter * if &nu | set rnu   | endif
+  autocmd BufEnter,FocusGained,InsertLeave,WinEnter * if &nu && mode() != "i" | set rnu   | endif
   autocmd BufLeave,FocusLost,InsertEnter,WinLeave   * if &nu | set nornu | endif
 augroup END