diff --git a/MuonScaRe_corr.py b/MuonScaRe_corr.py
index d00e1c6..95532e8 100644
--- a/MuonScaRe_corr.py
+++ b/MuonScaRe_corr.py
@@ -60,7 +60,6 @@ def getP4VariationsForLegs(self, df):
         if not self.isData:
             sources += MuonScaReCorrProducer.uncSources
         for source in sources:
-            updateSourceDict(source_dict, source, "Muon")
             for scale in getScales(source):
                 syst_name = getSystName(source, scale)
                 for leg_idx in [1, 2]: