diff --git a/runtime/doc/vim_diff.txt b/runtime/doc/vim_diff.txt
index 5ea6a9c5dd..7f944bbfe6 100644
--- a/runtime/doc/vim_diff.txt
+++ b/runtime/doc/vim_diff.txt
@@ -84,7 +84,7 @@ Nvim creates the following default mappings at |startup|. You can disable any
 of these in your config by simply removing the mapping, e.g. ":unmap Y".
 >
 	nnoremap Y y$
-	nnoremap <C-L> <Cmd>nohlsearch<Bar>diffupdate<CR><C-L>
+	nnoremap <C-L> <Cmd>nohlsearch<Bar>diffupdate<Bar>normal! <C-L><CR>
 	inoremap <C-U> <C-G>u<C-U>
 	inoremap <C-W> <C-G>u<C-W>
 <
diff --git a/src/nvim/getchar.c b/src/nvim/getchar.c
index 299456f688..3ec5d24753 100644
--- a/src/nvim/getchar.c
+++ b/src/nvim/getchar.c
@@ -842,7 +842,10 @@ static void init_typebuf(void)
 void init_default_mappings(void)
 {
   add_map((char_u *)"Y y$", NORMAL, true);
-  add_map((char_u *)"<C-L> <Cmd>nohlsearch<Bar>diffupdate<CR><C-L>", NORMAL, true);
+
+  // Use normal! <C-L> to prevent inserting raw <C-L> when using i_<C-O>
+  // See https://github.com/neovim/neovim/issues/17473
+  add_map((char_u *)"<C-L> <Cmd>nohlsearch<Bar>diffupdate<Bar>normal! <C-L><CR>", NORMAL, true);
   add_map((char_u *)"<C-U> <C-G>u<C-U>", INSERT, true);
   add_map((char_u *)"<C-W> <C-G>u<C-W>", INSERT, true);
 }