diff --git a/dadi_cli/SimulateFs.py b/dadi_cli/SimulateFs.py
index ebd9b4d0..c8f9437b 100644
--- a/dadi_cli/SimulateFs.py
+++ b/dadi_cli/SimulateFs.py
@@ -13,8 +13,8 @@ def simulate_demography(
     ns: int, 
     misid: bool, 
     output: str, 
-    inference_file: bool
-    pts_l: tuple[int] = None, 
+    inference_file: bool,
+    pts_l: tuple[int] = None
 ) -> None:
     """
     Simulates frequency spectrum from a demographic model and optionally output inference files.