diff --git a/MC/config/PWGHF/pythia8/decayer/geant4_externaldecayer_Xic_trigger.in b/MC/config/PWGHF/pythia8/decayer/geant4_externaldecayer_Xic_trigger.in
index 0ecc07cee..3ba380d5f 100644
--- a/MC/config/PWGHF/pythia8/decayer/geant4_externaldecayer_Xic_trigger.in
+++ b/MC/config/PWGHF/pythia8/decayer/geant4_externaldecayer_Xic_trigger.in
@@ -65,4 +65,4 @@
 /mcPhysics/biasing/setParticles proton neutron pi+ pi-
 
 # external decayer
-/mcPhysics/setExtDecayerSelection xi_c0 anti_xi_c0 xi_c+ xi_c-
+/mcPhysics/setExtDecayerSelection xi_c0 anti_xi_c0 xi_c+ anti_xi_c+