diff --git a/lintrunner_adapters/adapters/ruff_linter.py b/lintrunner_adapters/adapters/ruff_linter.py
index a04ae18..adcde7f 100644
--- a/lintrunner_adapters/adapters/ruff_linter.py
+++ b/lintrunner_adapters/adapters/ruff_linter.py
@@ -23,7 +23,7 @@
 
 def explain_rule(code: str) -> str:
     proc = run_command(
-        ["ruff", "rule", "--output-format=json", code],
+        ["ruff", "rule", "--format=json", code],
         check=True,
     )
     rule = json.loads(str(proc.stdout, "utf-8").strip())