diff --git a/MC/config/PWGHF/pythia8/decayer/geant4_externaldecayer_charmbaryon.in b/MC/config/PWGHF/pythia8/decayer/geant4_externaldecayer_charmbaryon.in
index 46b4def18..d82da4a38 100644
--- a/MC/config/PWGHF/pythia8/decayer/geant4_externaldecayer_charmbaryon.in
+++ b/MC/config/PWGHF/pythia8/decayer/geant4_externaldecayer_charmbaryon.in
@@ -65,4 +65,4 @@
 /mcPhysics/biasing/setParticles proton neutron pi+ pi-
 
 # external decayer
-/mcPhysics/setExtDecayerSelection omega_c0 anti_omega_c0 xi_c0 anti_xi_c0 xi_c+ xi_c-
+/mcPhysics/setExtDecayerSelection omega_c0 anti_omega_c0 xi_c0 anti_xi_c0 xi_c+ anti_xi_c+