diff --git a/kdc/kaserver.c b/kdc/kaserver.c
index 05b0394bc..021898ae2 100644
--- a/kdc/kaserver.c
+++ b/kdc/kaserver.c
@@ -212,7 +212,7 @@ krb5_ret_xdr_data(krb5_storage *sp,
     return 0;
 }
 
-krb5_error_code
+static krb5_error_code
 krb5_store_xdr_data(krb5_storage *sp,
 		    krb5_data data)
 {