diff --git a/src/main/resources/api-definition/hs-office/hs-office-contact-schemas.yaml b/src/main/resources/api-definition/hs-office/hs-office-contact-schemas.yaml
index 9867921b..90d477dd 100644
--- a/src/main/resources/api-definition/hs-office/hs-office-contact-schemas.yaml
+++ b/src/main/resources/api-definition/hs-office/hs-office-contact-schemas.yaml
@@ -71,7 +71,7 @@ components:
                       country:
                           type: string
                           nullable: true
-                  additionalProperties: false
+                  additionalProperties: true
 
         HsOfficeContactEmailAddresses:
             # forces generating a java.lang.Object containing a Map, instead of a class with fixed properties