diff --git a/README.md b/README.md
index 2be9b5f..d8d4041 100644
--- a/README.md
+++ b/README.md
@@ -197,6 +197,8 @@ __NOTE__: The shown assignments are only examples, not defaults.
 ```vim
 let g:signify_vcs_list = [ 'git', 'hg' ]
 
+let g:signify_difftool = 'gnudiff'
+
 let g:signify_mapping_next_hunk = '<leader>gj'
 let g:signify_mapping_prev_hunk = '<leader>gk'
 
@@ -210,6 +212,7 @@ let g:signify_sign_overwrite = 1
 
 let g:signify_update_on_bufenter = 1
 
+
 let g:signify_line_highlight = 1
 
 let g:signify_sign_weight = 'bold'