diff --git a/plugin/settings.vim b/plugin/settings.vim
index 1e6c978..20edaeb 100644
--- a/plugin/settings.vim
+++ b/plugin/settings.vim
@@ -91,7 +91,7 @@ set noshowmode
 
 " Show relative line numbers & current line number
 set number
-if has('relativenumber')
+if exists('+relativenumber')
   set relativenumber
 endif