diff --git a/Reconstruction/MuonIdentification/MuonCombinedBaseTools/src/MuonCreatorTool.cxx b/Reconstruction/MuonIdentification/MuonCombinedBaseTools/src/MuonCreatorTool.cxx
index b7d0e15819d274c53aee9c7583f5212c4ab65bb5..75fa40d6e84fec24c2a7d32d1645e20c1965f02b 100644
--- a/Reconstruction/MuonIdentification/MuonCombinedBaseTools/src/MuonCreatorTool.cxx
+++ b/Reconstruction/MuonIdentification/MuonCombinedBaseTools/src/MuonCreatorTool.cxx
@@ -1383,7 +1383,7 @@ 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;
     }