diff --git a/librpc/ndr/ndr_krb5pac.c b/librpc/ndr/ndr_krb5pac.c
index 237c0b65d45..f7db7911076 100644
--- a/librpc/ndr/ndr_krb5pac.c
+++ b/librpc/ndr/ndr_krb5pac.c
@@ -115,6 +115,9 @@ enum ndr_err_code ndr_pull_PAC_BUFFER(struct ndr_pull *ndr, int ndr_flags, struc
 					NDR_CHECK(ndr_pull_subcontext_end(ndr, _ndr_info, 0, r->_ndr_size));
 				}
 				NDR_PULL_SET_MEM_CTX(ndr, _mem_save_info_0, 0);
+				if (ndr->offset > ndr->relative_highest_offset) {
+					ndr->relative_highest_offset = ndr->offset;
+				}
 				ndr->offset = _relative_save_offset;
 			}
 			ndr->flags = _flags_save_PAC_INFO;