diff --git a/src/sg/gov/moh/healthcert/1.0/schema.json b/src/sg/gov/moh/healthcert/1.0/schema.json
index 836f5ac..9186402 100644
--- a/src/sg/gov/moh/healthcert/1.0/schema.json
+++ b/src/sg/gov/moh/healthcert/1.0/schema.json
@@ -195,7 +195,7 @@
             "properties": {
               "value": {
                 "type": "string",
-                "description": "lab ascension number",
+                "description": "lab accession number",
                 "examples": ["123456789"]
               },
               "type": {