diff --git a/py-scripts/build-brave-extension.py b/py-scripts/build-brave-extension.py
index a0116e3cd9f7..b3985c7311c6 100644
--- a/py-scripts/build-brave-extension.py
+++ b/py-scripts/build-brave-extension.py
@@ -4,7 +4,7 @@
 import shutil
 from lib.util import execute_stdout, scoped_cwd
 
-NPM = 'yarn'
+NPM = 'npm'
 if sys.platform in ['win32', 'cygwin']:
   NPM += '.cmd'