diff --git a/nottcontrol/components/human_interface.py b/nottcontrol/components/human_interface.py
index aa19618..5966203 100644
--- a/nottcontrol/components/human_interface.py
+++ b/nottcontrol/components/human_interface.py
@@ -1040,8 +1040,8 @@ def characterize_null(self, dt, dark=None, frames=None, sequence=False):
 
         return disp_null_stack, broad_null_stack
 
-    def characterize_null_nifits_format(self, dt, dark=None, sequence=False, frames=None):
-        disp_null_stack, broad_null_stack = self.characterize_null(dt, dark, sequence, frames)
+    def characterize_null_nifits_format(self, dt, dark=None, frames=None, sequence=False):
+        disp_null_stack, broad_null_stack = self.characterize_null(dt, dark, frames, sequence)
 
         # WIP