diff --git a/README.md b/README.md
index 88e3e84..4e10dcd 100644
--- a/README.md
+++ b/README.md
@@ -42,8 +42,8 @@ To display the result table, the following fields are used. If this does not wor
 ### Additional data
 In addition to the fields mentionen above, there is the possibilty to display additional data. Currently it is possible to add the following fields to the table:
 * `040$e`
-* `499$a`
-* `499$v`
+* `490$a`
+* `490$v`
 * `773$g`
 * `773$t`
 * `800$a`
@@ -58,6 +58,7 @@ In addition to the fields mentionen above, there is the possibilty to display ad
 * `830$a`
 * `830$t`
 * `830$v`
+
 The Excel export will contain all active additional fields.
 
 ## Development notes
diff --git a/cloudapp/src/app/services/sru-response-parsers.service.ts b/cloudapp/src/app/services/sru-response-parsers.service.ts
index 60009ea..ed87aa1 100644
--- a/cloudapp/src/app/services/sru-response-parsers.service.ts
+++ b/cloudapp/src/app/services/sru-response-parsers.service.ts
@@ -23,8 +23,8 @@ export class SruResponseParserService {
 	private readonly XPATH_QUERY_LEADER_ANALYTICAL: string = "//default:leader"
 	private readonly XPATH_QUERY_ADDITIONAL: Map<string, string> = new Map<string, string>([
 		["040$e", "//default:datafield[@tag='040']/default:subfield[@code='e']"],
-		["499$a", "//default:datafield[@tag='449']/default:subfield[@code='a']"],
-		["499$v", "//default:datafield[@tag='449']/default:subfield[@code='v']"],
+		["490$a", "//default:datafield[@tag='490']/default:subfield[@code='a']"],
+		["490$v", "//default:datafield[@tag='490']/default:subfield[@code='v']"],
 		["773$g", "//default:datafield[@tag='773']/default:subfield[@code='g']"],
 		["773$t", "//default:datafield[@tag='773']/default:subfield[@code='t']"],
 		["800$a", "//default:datafield[@tag='800']/default:subfield[@code='a']"],