diff -ur littler.orig/DESCRIPTION littler/DESCRIPTION
--- littler.orig/DESCRIPTION	2015-10-29 14:13:59.000000000 +0100
+++ littler/DESCRIPTION	2016-02-20 18:47:49.748544850 +0100
@@ -16,7 +16,6 @@
 License: GPL (>= 2)
 OS_type: unix
 Suggests: knitr
-VignetteBuilder: knitr
 NeedsCompilation: yes
 Packaged: 2015-10-29 12:30:13.34583 UTC; edd
 Repository: CRAN
diff -ur littler.orig/vignettes/littler-examples.Rmd littler/vignettes/littler-examples.Rmd
--- littler.orig/vignettes/littler-examples.Rmd	2015-10-29 12:39:18.000000000 +0100
+++ littler/vignettes/littler-examples.Rmd	2016-02-20 18:43:57.558212957 +0100
@@ -5,7 +5,6 @@
 output: rmarkdown::html_vignette
 vignette: >
   %\VignetteIndexEntry{Littler Examples}
-  %\VignetteEngine{knitr::rmarkdown}
   \usepackage[utf8]{inputenc}
 ---
 
@@ -261,38 +260,6 @@
 As above, it has my preferred mirror and library location hard-wired.
 
 
-### Calling knitr
-
-Here is another convenience script which _knits_ a given file after
-testing the file actually exists.
-
-```r
-#!/usr/bin/r
-#
-# Simple helper script for knitr
-#
-# Dirk Eddelbuettel, May 2013
-#
-# GPL-2 or later
-
-if (is.null(argv)) {
-    cat("Need an argument FILE.Rnw\n")
-    q(status=-1)
-}
-
-
-file <- argv[1]
-if (!file.exists(file)) {
-    cat("File not found: ", file, "\n")
-    q(status=-1)
-}
-
-require(knitr)
-knit2pdf(file)
-
-```
-
-
 ### Running roxygen
 
 Similar to the previous example, this one uses roxygen to extract