diff --git a/MC/config/common/external/generator/CoalescencePythia8.h b/MC/config/common/external/generator/CoalescencePythia8.h
index 7fbeac6db..b1f392ba4 100644
--- a/MC/config/common/external/generator/CoalescencePythia8.h
+++ b/MC/config/common/external/generator/CoalescencePythia8.h
@@ -32,7 +32,7 @@ enum NucleiBits {
   kHe4 = 4,
 };
 
-std::vector<unsigned int> pdgList = {10010010, 1000010030, 1000020030, 1010010030, 1000020040};
+std::vector<unsigned int> pdgList = {1000010020, 1000010030, 1000020030, 1010010030, 1000020040};
 std::vector<float> massList = {1.875612, 2.80892113298, 2.808391, 2.991134, 3.727379};
 
 bool doCoal(Pythia8::Event& event, int charge, int pdgCode, float mass, bool trivialCoal, double coalescenceRadius, bool nuclFromDecay, int iD1, int iD2, int iD3 = -1, int iD4 = -1)
@@ -179,4 +179,4 @@ bool CoalescencePythia8(Pythia8::Event& event, std::vector<unsigned int> inputPd
     }
   }
   return coalHappened;
-}
\ No newline at end of file
+}