diff --git a/src/services/autofill.service.ts b/src/services/autofill.service.ts
index ce3797b94b..04697f22ec 100644
--- a/src/services/autofill.service.ts
+++ b/src/services/autofill.service.ts
@@ -618,7 +618,7 @@ export default class AutofillService implements AutofillServiceInterface {
                     fillFields.lastName = f;
                     break;
                 } else if (!fillFields.title && this.isFieldMatch(f[attr],
-                    ['honorific-prefix', 'prefix', 'title'])) {
+                    IdentityAutoFillConstants.TitleFieldNames)) {
                     fillFields.title = f;
                     break;
                 } else if (!fillFields.email && this.isFieldMatch(f[attr],
diff --git a/src/services/autofillConstants.ts b/src/services/autofillConstants.ts
index 2aa3781b3b..aa5d5ba0b4 100644
--- a/src/services/autofillConstants.ts
+++ b/src/services/autofillConstants.ts
@@ -190,6 +190,8 @@ export class IdentityAutoFillConstants {
     "data-recurly",
   ];
 
+  static readonly TitleFieldNames: string[] = ["honorific-prefix", "prefix", "title"];
+
   static readonly FirstnameFieldNames: string[] = [
     // English
     "f-name",