diff --git a/src/ontology/uberon-edit.obo b/src/ontology/uberon-edit.obo
index 6ec4cd449..857f7b543 100644
--- a/src/ontology/uberon-edit.obo
+++ b/src/ontology/uberon-edit.obo
@@ -117973,6 +117973,7 @@ relationship: in_taxon NCBITaxon:9850 ! Cervidae
 id: UBERON:0006972
 name: nephridium
 def: "An exceretory tubule that usually opens to the exterior by a nephridiopore. The inner end of the tubule may be blind, ending in flame cells (protonephridium) or may open into the coelom through a ciliated funnel (metanephridium)." [Wikipedia:Nephridium]
+synonym: "nephridia" EXACT OMO:0003004 [http://orcid.org/0000-0002-6601-2165]
 xref: BTO:0000923
 xref: Wikipedia:Nephridium
 is_a: UBERON:0006555 ! excretory tube