diff --git a/modules/io/src/mol/mmcif_reader.cc b/modules/io/src/mol/mmcif_reader.cc
index 0e35c4cfe86bd0edd03a989ac712c7a21d274e7a..6f0293a2f0aa46e0e2a08380551012b770de9cd6 100644
--- a/modules/io/src/mol/mmcif_reader.cc
+++ b/modules/io/src/mol/mmcif_reader.cc
@@ -1711,8 +1711,7 @@ void MMCifReader::ParseStructRefSeqDif(const std::vector<StringRef>& columns)
     }
   }
   if (!seq_rnum.first) {
- 	 	LOG_INFO("Ignoring struct_ref_seq_dif with missing data item "
- 	 	         "seq_num");
+    LOG_WARNING("Ignoring struct_ref_seq_dif with missing data item seq_num");
     return;
   }
   String details;