diff --git a/src/mdevaluate/correlation.py b/src/mdevaluate/correlation.py
index 772ef55..5e1cc95 100644
--- a/src/mdevaluate/correlation.py
+++ b/src/mdevaluate/correlation.py
@@ -103,6 +103,7 @@ def _average_correlation_multi(result):
             clean_result.append(entry)
     return np.average(np.array(clean_result), axis=0)
 
+
 @autosave_data(2)
 def shifted_correlation(
     function: Callable,