diff --git a/daemon/nfs41_xdr.c b/daemon/nfs41_xdr.c
index bff1f09..77a2862 100644
--- a/daemon/nfs41_xdr.c
+++ b/daemon/nfs41_xdr.c
@@ -1671,13 +1671,13 @@ static bool_t decode_file_attrs(
         }
         if (attrs->attrmask.arr[1] & FATTR4_WORD1_OWNER) {
             unsigned char *ptr = &info->owner[0];
-            if (!xdr_bytes(xdr, &ptr, &info->owner_len, 
+            if (!xdr_bytes(xdr, &(char *)ptr, &info->owner_len, 
                             NFS4_OPAQUE_LIMIT))
                 return FALSE;
         }
         if (attrs->attrmask.arr[1] & FATTR4_WORD1_OWNER_GROUP) {
             unsigned char *ptr = &info->owner_group[0];
-            if (!xdr_bytes(xdr, &ptr, &info->owner_group_len, 
+            if (!xdr_bytes(xdr, &(char *)ptr, &info->owner_group_len, 
                             NFS4_OPAQUE_LIMIT))
                 return FALSE;
         }