diff --git a/tools/README.md b/tools/README.md
index 90696ab4e6..1ea42bbe1d 100644
--- a/tools/README.md
+++ b/tools/README.md
@@ -29,7 +29,7 @@ source .venv/bin/activate
 
 **4. Build openpilot**
 ``` bash
-scons -u -j$(nproc)
+scons -u
 ```
 
 ## WSL on Windows