diff --git a/BUILDING.md b/BUILDING.md
index 7a17a24b595c17..8725db965eb0e4 100644
--- a/BUILDING.md
+++ b/BUILDING.md
@@ -328,7 +328,7 @@ If you are updating tests and want to run tests in a single test file
 (e.g. `test/parallel/test-stream2-transform.js`):
 
 ```text
-$ python tools/test.py parallel/test-stream2-transform.js
+$ python tools/test.py test/parallel/test-stream2-transform.js
 ```
 
 You can execute the entire suite of tests for a given subsystem