diff --git a/libkinetics/__init__.py b/libkinetics/__init__.py
index 58a7737..8d22771 100644
--- a/libkinetics/__init__.py
+++ b/libkinetics/__init__.py
@@ -107,7 +107,8 @@ class Measurement():
 
 class Experiment():
 
-    def __init__(self, data_files, xlim, do_hill=False, fit_to_replicates=False, logger=None):
+    def __init__(self, data_files, xlim, do_hill=False,
+                 fit_to_replicates=False, logger=None):
 
         if logger:
             self.logger = logger