diff --git a/PWGHF/D2H/Tasks/taskB0Reduced.cxx b/PWGHF/D2H/Tasks/taskB0Reduced.cxx
index 3bb3738d41b..a0f5b14e5cc 100644
--- a/PWGHF/D2H/Tasks/taskB0Reduced.cxx
+++ b/PWGHF/D2H/Tasks/taskB0Reduced.cxx
@@ -140,7 +140,7 @@ struct HfTaskB0Reduced {
     if ((std::accumulate(processFuncData.begin(), processFuncData.end(), 0)) > 1) {
       LOGP(fatal, "Only one process function for data can be enabled at a time.");
     }
-    std::array<bool, 5> processFuncMc{doprocessMc, doprocessMcWithDecayTypeCheck, doprocessMcWithDmesMl, doprocessMcWithB0Ml, doprocessMcWithB0MlAndDecayTypeCheck};
+    std::array<bool, 6> processFuncMc{doprocessMc, doprocessMcWithDecayTypeCheck, doprocessMcWithDmesMl, doprocessMcWithDmesMlAndDecayTypeCheck, doprocessMcWithB0Ml, doprocessMcWithB0MlAndDecayTypeCheck};
     if ((std::accumulate(processFuncMc.begin(), processFuncMc.end(), 0)) > 1) {
       LOGP(fatal, "Only one process function for MC can be enabled at a time.");
     }