diff --git a/lumispy/signals/cl_spectrum.py b/lumispy/signals/cl_spectrum.py
index b5944ad20..c6244ac67 100644
--- a/lumispy/signals/cl_spectrum.py
+++ b/lumispy/signals/cl_spectrum.py
@@ -77,7 +77,7 @@ def remove_spikes(
         add_noise=False,
         navigation_mask=None,
         interactive=False,
-        **kwargs
+        **kwargs,
     ):
         if luminescence_roi is not None and signal_mask is not None:
             raise AttributeError(
@@ -102,7 +102,7 @@ def remove_spikes(
             threshold=threshold,
             interactive=interactive,
             add_noise=add_noise,
-            **kwargs
+            **kwargs,
         )
 
         if threshold == "auto":
diff --git a/lumispy/tests/utils/test_signals.py b/lumispy/tests/utils/test_signals.py
index 53f021bae..0ab0606df 100644
--- a/lumispy/tests/utils/test_signals.py
+++ b/lumispy/tests/utils/test_signals.py
@@ -15,7 +15,7 @@
                     "a": 1,
                     "b": 0,
                 },
-                size=2
+                size=2,
             ),
             0.5,
         ),