diff --git a/runtime/indent/readline.vim b/runtime/indent/readline.vim
index a58cc41..e202ddf 100644
--- a/runtime/indent/readline.vim
+++ b/runtime/indent/readline.vim
@@ -25,11 +25,11 @@
   let ind = indent(lnum)
 
   if getline(lnum) =~ '^\s*$\(if\|else\)\>'
-    let ind = ind + &sw
+    let ind = ind + shiftwidth()
   endif
 
   if getline(v:lnum) =~ '^\s*$\(else\|endif\)\>'
-    let ind = ind - &sw
+    let ind = ind - shiftwidth()
   endif
 
   return ind