diff --git a/src/egamma_tnp/ntuple_efficiency.py b/src/egamma_tnp/ntuple_efficiency.py
index a9e1ccc..3362ce1 100644
--- a/src/egamma_tnp/ntuple_efficiency.py
+++ b/src/egamma_tnp/ntuple_efficiency.py
@@ -156,7 +156,7 @@ def find_probes(self, events, cut_and_count, mass_range, vars):
             vars_probes = [v for v in all_probe_events.fields if v.startswith("el_")]
             vars = vars_tags + vars_probes
 
-        vars = vars + ["event", "run", "lumi"] + [x for x in all_probe_events.fields if "weight" in x or "Weight" in x]
+        vars = vars + ["event", "run", "lumi"] + [x for x in all_probe_events.fields if "weight" in x or "Weight" in x and x != "psWeight"]
 
         if all_probe_events.metadata.get("isMC"):
             vars = [*vars, "truePU"]
@@ -322,7 +322,7 @@ def find_probes(self, events, cut_and_count, mass_range, vars):
             vars_probes = [v for v in all_probe_events.fields if v.startswith("el_")]
             vars = vars_tags + vars_probes
 
-        vars = vars + ["event", "run", "lumi"] + [x for x in all_probe_events.fields if "weight" in x or "Weight" in x]
+        vars = vars + ["event", "run", "lumi"] + [x for x in all_probe_events.fields if "weight" in x or "Weight" in x and x != "psWeight"]
 
         if all_probe_events.metadata.get("isMC"):
             vars = [*vars, "truePU"]