diff --git a/README.md b/README.md
index 3a44687..38e0ab8 100644
--- a/README.md
+++ b/README.md
@@ -1798,7 +1798,7 @@ for automating test set fetching!).
 ```sh
 $ mkdir build
 $ cd build
-$ cmake ..
+$ cmake .. -Dtoml11_BUILD_TEST=ON
 $ make
 $ make test
 ```