diff --git a/etc/key_mapping b/etc/key_mapping
index 148da2b4365add4f04f8c0c4aa28080c8b349524..e88fa11e1904bf47d4d11daa93f18a6f6321a8f0 100644
--- a/etc/key_mapping
+++ b/etc/key_mapping
@@ -23,3 +23,4 @@ centromere                                 misc_feature    note=centromere
 modified_amino_acid_feature                misc_feature    note=modified_amino_acid_feature
 snRNA                                      ncRNA           ncRNA_class="snRNA"
 snoRNA                                     ncRNA           ncRNA_class="snoRNA"
+nucleotide_match                           misc_feature    note=nucleotide_match