diff --git a/R/spinr/README.md b/R/spinr/README.md
index 12dfa863f82a2ad09c27426c5aae3083750e95b6..d03aa2d3ed2b86cb2e98b4e7ec40a4b407f9e980 100644
--- a/R/spinr/README.md
+++ b/R/spinr/README.md
@@ -1,4 +1,4 @@
-spin.R: A shell-wrapper for knitr::spin
+spin.R - A shell-wrapper for knitr::spin
 ===
 
 
@@ -8,7 +8,7 @@ Installation
 Download a local copy and add it to your path using
 ```
 targetDirectory=~/bin
-wget -P $targetDirectory https://raw.githubusercontent.com/holgerbrandl/datautils/master/R/spinr/spin.R
+wget -P $targetDirectory --no-check-certificate https://raw.githubusercontent.com/holgerbrandl/datautils/master/R/spinr/spin.R
 chmod +x $targetDirectory/spin.R
 export PATH=$targetDirectory:$PATH
 ```