diff --git a/runtime/indent/ld.vim b/runtime/indent/ld.vim
new file mode 100644
index 0000000..8c494ce
--- /dev/null
+++ b/runtime/indent/ld.vim
@@ -0,0 +1,49 @@
+" Vim indent file
+" Language:         ld(1) script
+" Maintainer:       Nikolai Weibull <nikolai+work.vim@bitwi.se>
+" Latest Revision:  2005-06-28
+
+if exists("b:did_indent")
+  finish
+endif
+let b:did_indent = 1
+
+setlocal indentexpr=GetLDIndent()
+setlocal indentkeys=0{,0},!^F,o,O
+
+if exists("*GetLDIndent")
+  finish
+endif
+
+function s:count_braces(lnum, count_open)
+  let n_open = 0
+  let n_close = 0
+  let line = getline(a:lnum)
+  let pattern = '[{}]'
+  let i = match(line, pattern)
+  while i != -1
+    if synIDattr(synID(a:lnum, i + 1, 0), 'name') !~ 'ld\%(Comment\|String\)'
+      if line[i] == '{'
+        let n_open += 1
+      elseif line[i] == '}'
+        if n_open > 0
+          let n_open -= 1
+        else
+          let n_close += 1
+        endif
+      endif
+    endif
+    let i = match(line, pattern, i + 1)
+  endwhile
+  return a:count_open ? n_open : n_close
+endfunction
+
+function GetLDIndent()
+  let pnum = prevnonblank(v:lnum - 1)
+  if pnum == 0
+    return 0
+  endif
+
+  return indent(pnum) + s:count_braces(pnum, 1) * &sw
+        \ - s:count_braces(v:lnum, 0) * &sw
+endfunction