diff --git a/README.md b/README.md
index 7cbda275..f2894a5e 100644
--- a/README.md
+++ b/README.md
@@ -22,7 +22,7 @@ Configure git on your machine. Some basic configurations follow. Replace
 ``` bash
 $ git config --global user.name "FirstName OtherNames LastName"
 $ git config --global user.email rhrkuser@rhrk.uni-kl.de
-$ git config --global credential.helper ’cache --timeout=3600’
+$ git config --global credential.helper 'cache --timeout=3600'
 $ git config --global color.ui auto
 ```