diff --git a/src/txl.c b/src/txl.c
index 21a895dc..591b5cb2 100644
--- a/src/txl.c
+++ b/src/txl.c
@@ -38,8 +38,8 @@ void txl_free(txl_t txl) {
 }
 
 static int txl_reserve(txl_t __restrict *__restrict ptxl, const size_t wanna) {
-  const size_t allocated = (size_t)MDBX_PNL_ALLOCLEN(*ptxl);
-  assert(MDBX_PNL_GETSIZE(*ptxl) <= txl_max && MDBX_PNL_ALLOCLEN(*ptxl) >= MDBX_PNL_GETSIZE(*ptxl));
+  const size_t allocated = txl_alloclen(*ptxl);
+  assert(txl_size(*ptxl) <= txl_max && txl_alloclen(*ptxl) >= txl_size(*ptxl));
   if (likely(allocated >= wanna))
     return MDBX_SUCCESS;
 
@@ -64,34 +64,34 @@ static int txl_reserve(txl_t __restrict *__restrict ptxl, const size_t wanna) {
 }
 
 static inline int __must_check_result txl_need(txl_t __restrict *__restrict ptxl, size_t num) {
-  assert(MDBX_PNL_GETSIZE(*ptxl) <= txl_max && MDBX_PNL_ALLOCLEN(*ptxl) >= MDBX_PNL_GETSIZE(*ptxl));
+  assert(txl_size(*ptxl) <= txl_max && txl_alloclen(*ptxl) >= txl_size(*ptxl));
   assert(num <= PAGELIST_LIMIT);
-  const size_t wanna = (size_t)MDBX_PNL_GETSIZE(*ptxl) + num;
-  return likely(MDBX_PNL_ALLOCLEN(*ptxl) >= wanna) ? MDBX_SUCCESS : txl_reserve(ptxl, wanna);
+  const size_t wanna = txl_size(*ptxl) + num;
+  return likely(txl_alloclen(*ptxl) >= wanna) ? MDBX_SUCCESS : txl_reserve(ptxl, wanna);
 }
 
-static inline void txl_xappend(txl_t __restrict txl, txnid_t id) {
-  assert(MDBX_PNL_GETSIZE(txl) < MDBX_PNL_ALLOCLEN(txl));
-  txl[0] += 1;
-  MDBX_PNL_LAST(txl) = id;
+static inline void txl_append_prereserved(txl_t __restrict txl, txnid_t id) {
+  assert(txl_size(txl) < txl_alloclen(txl));
+  size_t end = txl[0] += 1;
+  txl[end] = id;
 }
 
 #define TXNID_SORT_CMP(first, last) ((first) > (last))
 SORT_IMPL(txnid_sort, false, txnid_t, TXNID_SORT_CMP)
-void txl_sort(txl_t txl) { txnid_sort(MDBX_PNL_BEGIN(txl), MDBX_PNL_END(txl)); }
+void txl_sort(txl_t txl) { txnid_sort(txl + 1, txl + txl_size(txl) + 1); }
 
 int __must_check_result txl_append(txl_t __restrict *ptxl, txnid_t id) {
-  if (unlikely(MDBX_PNL_GETSIZE(*ptxl) == MDBX_PNL_ALLOCLEN(*ptxl))) {
+  if (unlikely(txl_size(*ptxl) == txl_alloclen(*ptxl))) {
     int rc = txl_need(ptxl, txl_granulate);
     if (unlikely(rc != MDBX_SUCCESS))
       return rc;
   }
-  txl_xappend(*ptxl, id);
+  txl_append_prereserved(*ptxl, id);
   return MDBX_SUCCESS;
 }
 
 __hot bool txl_contain(const txl_t txl, txnid_t id) {
-  const size_t len = MDBX_PNL_GETSIZE(txl);
+  const size_t len = txl_size(txl);
   for (size_t i = 1; i <= len; ++i)
     if (txl[i] == id)
       return true;
diff --git a/src/txl.h b/src/txl.h
index 76d6a3cb..77ca2a3b 100644
--- a/src/txl.h
+++ b/src/txl.h
@@ -24,3 +24,7 @@ MDBX_MAYBE_UNUSED MDBX_INTERNAL int __must_check_result txl_append(txl_t __restr
 MDBX_MAYBE_UNUSED MDBX_INTERNAL void txl_sort(txl_t txl);
 
 MDBX_MAYBE_UNUSED MDBX_INTERNAL bool txl_contain(const txl_t txl, txnid_t id);
+
+static inline size_t txl_alloclen(const_txl_t txl) { return txl[-1]; }
+
+static inline size_t txl_size(const_txl_t txl) { return txl[0]; }
diff --git a/test/extra/details_rkl.c b/test/extra/details_rkl.c
index ade9f6f7..232525f0 100644
--- a/test/extra/details_rkl.c
+++ b/test/extra/details_rkl.c
@@ -183,7 +183,7 @@ static bool stochastic_pass(const unsigned start, const unsigned width, const un
 
   txnid_t lowest = UINT_MAX;
   txnid_t highest = 0;
-  while (MDBX_PNL_GETSIZE(l) < n) {
+  while (txl_size(l) < n) {
     txnid_t id = (txnid_t)(prng() % width + start);
     if (id < MIN_TXNID || id >= INVALID_TXNID)
       continue;
@@ -227,7 +227,7 @@ static bool stochastic_pass(const unsigned start, const unsigned width, const un
 
   txl_sort(l);
   CHECK_EQ(rkl_len(&k), n);
-  CHECK_EQ(MDBX_PNL_GETSIZE(l), n);
+  CHECK_EQ(txl_size(l), n);
 
   f = rkl_iterator(&k, false);
   r = rkl_iterator(&k, true);