diff --git a/README.md b/README.md
index 4b411212..9a6df858 100644
--- a/README.md
+++ b/README.md
@@ -557,6 +557,8 @@ $ pip3 install mistletoe
 - Build DwarFS and run its tests:
 
 ```
+$ git checkout v0.9.0
+$ git submodule update
 $ mkdir build && cd build
 $ cmake .. -GNinja -DWITH_TESTS=ON
 $ ninja