diff --git a/README.md b/README.md
index 20d0605..2be5d94 100644
--- a/README.md
+++ b/README.md
@@ -49,7 +49,7 @@ Similar to `--config=hermetic-sandbox`. Which means there is something else at
 play, not only re-hashing the sandbox files:
 
 ```
-bazel --batch clean; bazel --batch build --platforms=@zig_sdk//libc_aware/platform:linux_amd64_gnu.2.28 ...
+bazel --batch clean; bazel --batch build --config=hermetic-sandbox --platforms=@zig_sdk//libc_aware/platform:linux_amd64_gnu.2.28 ...
 INFO: Elapsed time: 136.957s, Critical Path: 18.14s
 ```