diff --git a/deepdog/cli/probs/args.py b/deepdog/cli/probs/args.py
index 676c76f..061f6ad 100644
--- a/deepdog/cli/probs/args.py
+++ b/deepdog/cli/probs/args.py
@@ -13,7 +13,7 @@ def parse_args() -> argparse.Namespace:
 		"probs", description="Calculating probability from finished bayesrun"
 	)
 	parser.add_argument(
-		"--log_file",
+		"--log-file",
 		type=str,
 		help="A filename for logging to, if not provided will only log to stderr",
 		default=None,
diff --git a/deepdog/cli/subset_sim_probs/args.py b/deepdog/cli/subset_sim_probs/args.py
index 77e8744..1e9e53d 100644
--- a/deepdog/cli/subset_sim_probs/args.py
+++ b/deepdog/cli/subset_sim_probs/args.py
@@ -14,7 +14,7 @@ def parse_args() -> argparse.Namespace:
 		description="Calculating probability from finished subset sim run",
 	)
 	parser.add_argument(
-		"--log_file",
+		"--log-file",
 		type=str,
 		help="A filename for logging to, if not provided will only log to stderr",
 		default=None,