diff --git a/internal/mtmpl/funcs.gen.py b/internal/mtmpl/funcs.gen.py
index 0bdf989..da750df 100644
--- a/internal/mtmpl/funcs.gen.py
+++ b/internal/mtmpl/funcs.gen.py
@@ -71,4 +71,4 @@ def inject(content: str, key: str, lines: List[str]) -> str:
 save(content)
 
 subprocess.run(['go', 'fmt', os.path.join(
-    os.path.dirname(__file__), 'funcs.go')])
+    os.path.dirname(__file__), 'funcs.go')], stdout=subprocess.DEVNULL)