diff --git a/src/HH4b/processors/GenSelection.py b/src/HH4b/processors/GenSelection.py
index 6075c62f..bbb61935 100644
--- a/src/HH4b/processors/GenSelection.py
+++ b/src/HH4b/processors/GenSelection.py
@@ -65,7 +65,7 @@ def gen_selection_HHbbbb(
     fatjets: FatJetArray,
     selection_args: list,
     skim_vars: dict,
-    fatjet_str:	str = "bbFatJet",
+    fatjet_str: str = "bbFatJet",
 ):
     """Gets HH, bb 4-vectors"""
     # finding the two gen higgs