diff --git a/src/main/java/network/oxalis/as4/inbound/As4PayloadHeader.java b/src/main/java/network/oxalis/as4/inbound/As4PayloadHeader.java
index a35d277..99c3edd 100644
--- a/src/main/java/network/oxalis/as4/inbound/As4PayloadHeader.java
+++ b/src/main/java/network/oxalis/as4/inbound/As4PayloadHeader.java
@@ -61,6 +61,11 @@ public Header creationTimestamp(Date creationTimestamp) {
         return header.creationTimestamp(creationTimestamp);
     }
 
+    @Override
+    public Header c1CountryIdentifier(C1CountryIdentifier c1CountryIdentifier) {
+        return header.c1CountryIdentifier(c1CountryIdentifier);
+    }
+
     @Override
     public Header argument(ArgumentIdentifier identifier) {
         return header.argument(identifier);
@@ -125,4 +130,9 @@ public InstanceType getInstanceType() {
     public Date getCreationTimestamp() {
         return header.getCreationTimestamp();
     }
+
+    @Override
+    public C1CountryIdentifier getC1CountryIdentifier() {
+        return header.getC1CountryIdentifier();
+    }
 }