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-rw-r--r--src/bootstrap/bootstrap.py4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/bootstrap/bootstrap.py b/src/bootstrap/bootstrap.py
index 71b8f3c4553..927e686070f 100644
--- a/src/bootstrap/bootstrap.py
+++ b/src/bootstrap/bootstrap.py
@@ -1161,9 +1161,9 @@ class RustBuild(object):
         """Check that vendoring is configured properly"""
         vendor_dir = os.path.join(self.rust_root, 'vendor')
         if 'SUDO_USER' in os.environ and not self.use_vendored_sources:
-            if os.environ.get('USER') != os.environ['SUDO_USER']:
+            if os.getuid() == 0:
                 self.use_vendored_sources = True
-                print('info: looks like you are running this command under `sudo`')
+                print('info: looks like you\'re trying to run this command as root')
                 print('      and so in order to preserve your $HOME this will now')
                 print('      use vendored sources by default.')
                 if not os.path.exists(vendor_dir):