diff --git a/backend/src/main/java/edu/internet2/tier/shibboleth/admin/ui/controller/CustomEntityAttributesDefinitionsController.java b/backend/src/main/java/edu/internet2/tier/shibboleth/admin/ui/controller/CustomEntityAttributesDefinitionsController.java
index a51ea77c8..f80c582b2 100644
--- a/backend/src/main/java/edu/internet2/tier/shibboleth/admin/ui/controller/CustomEntityAttributesDefinitionsController.java
+++ b/backend/src/main/java/edu/internet2/tier/shibboleth/admin/ui/controller/CustomEntityAttributesDefinitionsController.java
@@ -46,7 +46,7 @@ public ResponseEntity<?> create(@RequestBody CustomEntityAttributeDefinition def
     @PutMapping("/attribute")
     @Transactional
     public ResponseEntity<?> update(@RequestBody CustomEntityAttributeDefinition definition) {
-        CustomEntityAttributeDefinition cad = caService.find(definition.getName());      
+        CustomEntityAttributeDefinition cad = caService.find(definition.getResourceId());      
         if (cad == null) {
             HttpHeaders headers = new HttpHeaders();
             headers.setLocation(ServletUriComponentsBuilder.fromCurrentServletMapping().path("/api/custom/entity/attribute").build().toUri());