diff --git a/README.md b/README.md
index 06c6a90..ddc1a01 100644
--- a/README.md
+++ b/README.md
@@ -87,6 +87,7 @@ slweb/libslweb.a:
 
 ```sh
 $ mkdir build/
+$ cd build/
 $ cmake ..
 $ cmake --build .
 ```