1 files changed, 2 insertions, 1 deletions
diff --git a/Docs.md b/Docs.md
index 50600f362..e0d732bc3 100644
--- a/Docs.md
+++ b/Docs.md
@@ -116,7 +116,8 @@ Extra steps for Windows users:
     ./tools/test.py
 
     # Format code.
-    deno ./tools/format.ts --allow-read --allow-run
+    PYTHONPATH=third_party/python_packages deno ./tools/format.ts --allow-read --allow-run
+    <!-- TODO: set PYTHONPATH in format.ts when run API has env option -->
 
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