diff --git a/etc/feature_keys b/etc/feature_keys
index ecf617c82f30efce2b60713c366de9705fdf082f..75df20abddd821de0b612e892672a9f83c70540d 100644
--- a/etc/feature_keys
+++ b/etc/feature_keys
@@ -63,6 +63,7 @@ repeat_unit     allele citation db_xref evidence function gene inference label l
 satellite       allele citation db_xref evidence gene inference label locus_tag map note partial rpt_family rpt_type rpt_unit standard_name usedin
 scRNA           allele citation db_xref evidence function gene inference label locus_tag map note partial product pseudo standard_name usedin
 sig_peptide     allele citation codon codon_start db_xref evidence function gene inference label locus_tag map note partial product pseudo standard_name transl_except usedin
+tag_peptide     allele citation codon codon_start db_xref evidence function gene inference label locus_tag map note partial product pseudo standard_name transl_except usedin
 snRNA           allele citation db_xref evidence function gene inference label locus_tag map note partial product pseudo standard_name usedin
 snoRNA          allele citation db_xref evidence function gene inference label locus_tag map note partial product pseudo standard_name usedin
 source          @organism cell_line cell_type chloroplast chromoplast chromosome citation clone clone_lib country cultivar cyanelle db_xref dev_stage ecotype environmental_sample evidence focus frequency germline haplotype inference insertion_seq isolate isolation_source kinetoplast lab_host label macronuclear map mitochondrion mol_type note organelle plasmid pop_variant proviral rearranged segment sequenced_mol serotype serovar sex specific_host specimen_voucher strain sub_clone sub_species sub_strain tissue_lib tissue_type transgenic transposon usedin variety virion