diff --git a/gnes/service/indexer.py b/gnes/service/indexer.py
index d235f45c..7f227cab 100644
--- a/gnes/service/indexer.py
+++ b/gnes/service/indexer.py
@@ -93,8 +93,8 @@ def _cal_offset_relevance(q_offset, i_offset):
                 r.score = _weight * qc_weight * _relevance * offset_relevance
                 r.score_explained = '[chunk_score at doc: %d, offset: %d] = ' \
                                     '(doc_chunk_weight: %.6f) * ' \
-                                    '(query_doc_chunk_relevance: %.6f) * ' \
-                                    '(chunk_offset_relevance: %.6f) * ' \
+                                    '(chunk_relevance: %.6f) * ' \
+                                    '(offset_divergence: %.6f) * ' \
                                     '(query_chunk_weight: %.6f)' % (
                                         _doc_id, _offset, _weight, _relevance, offset_relevance, qc_weight)
             msg.response.search.top_k = topk