diff --git a/runtime/indent/chaiscript.vim b/runtime/indent/chaiscript.vim
index 247e1a6..445281c 100644
--- a/runtime/indent/chaiscript.vim
+++ b/runtime/indent/chaiscript.vim
@@ -31,19 +31,19 @@
   let flag = 0
   let prevline = getline(lnum)
   if prevline =~ '^.*{.*'
-    let ind = ind + &shiftwidth
+    let ind = ind + shiftwidth()
     let flag = 1
   endif
 
   " Subtract a 'shiftwidth' after lines containing a { followed by a }
   " to keep it balanced
   if flag == 1 && prevline =~ '.*{.*}.*'
-    let ind = ind - &shiftwidth
+    let ind = ind - shiftwidth()
   endif
 
   " Subtract a 'shiftwidth' on lines ending with }
   if getline(v:lnum) =~ '^\s*\%(}\)'
-    let ind = ind - &shiftwidth
+    let ind = ind - shiftwidth()
   endif
 
   return ind