diff --git a/MC/config/PWGLF/ini/GeneratorLFHyperNucleiPbPbGap.ini b/MC/config/PWGLF/ini/GeneratorLFHyperNucleiPbPbGap.ini
index feceea039..4acc1d268 100644
--- a/MC/config/PWGLF/ini/GeneratorLFHyperNucleiPbPbGap.ini
+++ b/MC/config/PWGLF/ini/GeneratorLFHyperNucleiPbPbGap.ini
@@ -1,6 +1,6 @@
 [GeneratorExternal]
 fileName=${O2DPG_ROOT}/MC/config/PWGLF/pythia8/generator_pythia8_longlived_gaptriggered.C
-funcName=generateLongLivedGapTriggered("${O2DPG_ROOT}/MC/config/PWGLF/pythia8/generator/hypernuclei.gun", 1)
+funcName=generateLongLivedGapTriggered("${O2DPG_ROOT}/MC/config/PWGLF/pythia8/generator/hypernuclei_pbpb.gun", 1)
 
 [GeneratorPythia8]
 config=${O2_ROOT}/share/Generators/egconfig/pythia8_hi.cfg