diff --git a/Reconstruction/MuonIdentification/MuonCombinedBaseTools/src/MuonCreatorTool.cxx b/Reconstruction/MuonIdentification/MuonCombinedBaseTools/src/MuonCreatorTool.cxx
index 08c9c845a2f8eb5230da141b20c02f3565a42e04..e8935da40b67c648ef3fb439cc00340f6df0c7d0 100644
--- a/Reconstruction/MuonIdentification/MuonCombinedBaseTools/src/MuonCreatorTool.cxx
+++ b/Reconstruction/MuonIdentification/MuonCombinedBaseTools/src/MuonCreatorTool.cxx
@@ -1389,7 +1389,7 @@ namespace MuonCombined {
       }
       */
     }else{
-      ATH_MSG_ERROR("No primary track particle set, deleting muon");
+      ATH_MSG_DEBUG("No primary track particle set, deleting muon");
       return false;
     }