diff --git a/README.md b/README.md
index 4b6bc04..ba64303 100644
--- a/README.md
+++ b/README.md
@@ -535,11 +535,16 @@ Development
 Source Code Repository
 ----------------------
 
-The source code for btrbk is managed using Git. Check out the source
-like this:
+The source code for btrbk is managed using Git.
+
+Official repository:
 
     git clone https://dev.tty0.ch/btrbk.git
 
+Mirror on GitHub:
+
+    git clone https://github.com/digint/btrbk.git
+
 
 How to Contribute
 -----------------