diff --git a/src/envo/envo-edit.owl b/src/envo/envo-edit.owl
index 4f6acf5b..82cb1dfa 100644
--- a/src/envo/envo-edit.owl
+++ b/src/envo/envo-edit.owl
@@ -1,4 +1,4 @@
-Prefix(:=<http://purl.obolibrary.org/obo/envo.owl/>)
+Prefix(:=<http://purl.obolibrary.org/obo/envo.owl#>)
 Prefix(iso:=<https://www.iso.org/obp/ui/#iso:std:iso:>)
 Prefix(owl:=<http://www.w3.org/2002/07/owl#>)
 Prefix(rdf:=<http://www.w3.org/1999/02/22-rdf-syntax-ns#>)