1 files changed, 4 insertions, 3 deletions
diff --git a/README.md b/README.md
index e8a2f8b17..bd09c63b0 100644
--- a/README.md
+++ b/README.md
@@ -76,9 +76,9 @@ To build:
     # Fetch deps.
     git clone --recurse-submodules https://github.com/ry/deno.git
     cd deno
-    ./tools/run_hooks.py
+    ./tools/setup.py
 
-    # Build
+    # Build.
     ./tools/build.py
 
     # Run
@@ -89,7 +89,7 @@ Other useful commands:
     # Call ninja manually.
     ./third_party/depot_tools/ninja -C out/debug :all
     # Build a release binary.
-    ./tools/build.py --mode=release :deno
+    DENO_BUILD_MODE=release ./tools/build.py :deno
     # List executable targets.
     ./third_party/depot_tools/gn ls out/debug //:* --as=output --type=executable
     # List build configuation.
@@ -100,3 +100,4 @@ Other useful commands:
     ./third_party/depot_tools/gn desc out/debug/ :deno
     ./third_party/depot_tools/gn help
 
+Env vars: `DENO_BUILD_MODE`, `DENO_BUILD_PATH`, `DENO_BUILD_ARGS`.