diff --git a/lib/krb5/krb5.h b/lib/krb5/krb5.h
index 8572de48f..6d37bffd5 100644
--- a/lib/krb5/krb5.h
+++ b/lib/krb5/krb5.h
@@ -952,6 +952,10 @@ krb5_get_host_realm(krb5_context context,
 		    const char *host,
 		    char ***realms);
 
+krb5_error_code
+krb5_free_host_realm(krb5_context context,
+		     char **realmlist);
+
 krb5_error_code
 krb5_set_default_realm(krb5_context context,
 		       char *realm);