diff --git a/autoload/doge/helpers.vim b/autoload/doge/helpers.vim
index 74f1f2a6..6033a619 100644
--- a/autoload/doge/helpers.vim
+++ b/autoload/doge/helpers.vim
@@ -139,6 +139,12 @@ function! doge#helpers#deepextend(...) abort
   return l:new
 endfunction
 
+"" @public
+" Substitute input recursively.
+function! doge#helpers#deepsubstitute(input, search, replacement, flags) abort
+  return eval(substitute(string(a:input), a:search, a:replacement, a:flags))
+endfunction
+
 "" @public
 " Get the current filetype. Returns the original filetype if the current
 " filetype is an alias.