diff --git a/text2term/term_mapping.py b/text2term/term_mapping.py
index bf3add7..8da155c 100644
--- a/text2term/term_mapping.py
+++ b/text2term/term_mapping.py
@@ -55,9 +55,6 @@ def to_dict(self):
             self.MAPPING_SCORE: self.mapping_score
         }
 
-    def get_col_names(self):
-        return [SRC_TERM, SRC_TERM_ID, TGT_TERM_LBL, TGT_TERM_CURIE, TGT_TERM_IRI, MAPPING_SCORE]
-
     def __eq__(self, other):
         if isinstance(other, TermMapping):
             return self.source_term == other.source_term and self.mapped_term_iri == other.mapped_term_iri