diff --git a/src/nouveau/headers/lib_rs_gen.py b/src/nouveau/headers/lib_rs_gen.py
index d91cd4467dd..8b03a94fcc8 100644
--- a/src/nouveau/headers/lib_rs_gen.py
+++ b/src/nouveau/headers/lib_rs_gen.py
@@ -121,7 +121,7 @@ def main():
 
     try:
         subprocess.run(['rustfmt', args.out_rs], check=True)
-    except (subprocess.CalledProcessError, FileNotFoundError):
+    except (subprocess.CalledProcessError, FileNotFoundError, PermissionError):
         pass
 
 if __name__ == '__main__':