diff --git a/README.md b/README.md
index 55a5eaf..de73777 100644
--- a/README.md
+++ b/README.md
@@ -47,4 +47,7 @@ selected lines.
 Customization
 -------------
 
-`¯\_(ツ)_/¯`
+```vim
+# Use horizontal splits instead of vertical
+let g:gv_horizontal = 1
+```
diff --git a/plugin/gv.vim b/plugin/gv.vim
index d8480f1..44360dd 100644
--- a/plugin/gv.vim
+++ b/plugin/gv.vim
@@ -87,6 +87,8 @@ function! s:split(tab)
   elseif getwinvar(winnr('$'), 'gv')
     $wincmd w
     enew
+  elseif exists('g:gv_horizontal')
+    botright new
   else
     vertical botright new
   endif