diff --git a/mdbx.h b/mdbx.h
index 772401fa..925d214c 100644
--- a/mdbx.h
+++ b/mdbx.h
@@ -1936,7 +1936,7 @@ struct MDBX_envinfo {
    relevant information is available from the system. */
   struct {
     struct {
-      uint64_t l, h;
+      uint64_t x, y;
     } current, meta0, meta1, meta2;
   } mi_bootid;
 
diff --git a/src/core.c b/src/core.c
index a979601c..833e030a 100644
--- a/src/core.c
+++ b/src/core.c
@@ -16834,12 +16834,12 @@ int __cold mdbx_env_info_ex(const MDBX_env *env, const MDBX_txn *txn,
     arg->mi_meta2_txnid = mdbx_meta_txnid_fluid(env, meta2);
     arg->mi_meta2_sign = meta2->mm_datasync_sign;
     if (likely(bytes > size_before_bootid)) {
-      arg->mi_bootid.meta0.l = meta0->mm_bootid.x;
-      arg->mi_bootid.meta1.l = meta0->mm_bootid.x;
-      arg->mi_bootid.meta2.l = meta0->mm_bootid.x;
-      arg->mi_bootid.meta0.h = meta0->mm_bootid.y;
-      arg->mi_bootid.meta1.h = meta0->mm_bootid.y;
-      arg->mi_bootid.meta2.h = meta0->mm_bootid.y;
+      arg->mi_bootid.meta0.x = meta0->mm_bootid.x;
+      arg->mi_bootid.meta1.x = meta0->mm_bootid.x;
+      arg->mi_bootid.meta2.x = meta0->mm_bootid.x;
+      arg->mi_bootid.meta0.y = meta0->mm_bootid.y;
+      arg->mi_bootid.meta1.y = meta0->mm_bootid.y;
+      arg->mi_bootid.meta2.y = meta0->mm_bootid.y;
     }
 
     const MDBX_meta *txn_meta = recent_meta;
@@ -16894,8 +16894,8 @@ int __cold mdbx_env_info_ex(const MDBX_env *env, const MDBX_txn *txn,
     arg->mi_autosync_threshold = pgno2bytes(env, *env->me_autosync_threshold);
     arg->mi_autosync_period_seconds16dot16 =
         mdbx_osal_monotime_to_16dot16(*env->me_autosync_period);
-    arg->mi_bootid.current.l = bootid.x;
-    arg->mi_bootid.current.h = bootid.y;
+    arg->mi_bootid.current.x = bootid.x;
+    arg->mi_bootid.current.y = bootid.y;
     arg->mi_mode = lck ? lck->mti_envmode : env->me_flags;
   }
 
diff --git a/src/mdbx_chk.c b/src/mdbx_chk.c
index 1ed6c144..e78bd44f 100644
--- a/src/mdbx_chk.c
+++ b/src/mdbx_chk.c
@@ -967,13 +967,13 @@ static int meta_steady(void) { return meta_recent(true); }
 
 static int meta_head(void) { return meta_recent(false); }
 
-void verbose_meta(int num, txnid_t txnid, uint64_t sign, uint64_t bootid_h,
-                  uint64_t bootid_l) {
+void verbose_meta(int num, txnid_t txnid, uint64_t sign, uint64_t bootid_x,
+                  uint64_t bootid_y) {
   print(" - meta-%d: %s %" PRIu64, num, meta_synctype(sign), txnid);
   bool stay = true;
-  const bool bootid_match = bootid_h == envinfo.mi_bootid.current.h &&
-                            bootid_l == envinfo.mi_bootid.current.l &&
-                            (bootid_h | bootid_l) != 0;
+  const bool bootid_match = bootid_x == envinfo.mi_bootid.current.x &&
+                            bootid_y == envinfo.mi_bootid.current.y &&
+                            (bootid_x | bootid_y) != 0;
 
   const int steady = meta_steady();
   const int head = meta_head();
@@ -1368,11 +1368,11 @@ int main(int argc, char *argv[]) {
           envinfo.mi_recent_txnid - envinfo.mi_latter_reader_txnid);
 
     verbose_meta(0, envinfo.mi_meta0_txnid, envinfo.mi_meta0_sign,
-                 envinfo.mi_bootid.meta0.h, envinfo.mi_bootid.meta0.l);
+                 envinfo.mi_bootid.meta0.x, envinfo.mi_bootid.meta0.y);
     verbose_meta(1, envinfo.mi_meta1_txnid, envinfo.mi_meta1_sign,
-                 envinfo.mi_bootid.meta1.h, envinfo.mi_bootid.meta1.l);
+                 envinfo.mi_bootid.meta1.x, envinfo.mi_bootid.meta1.y);
     verbose_meta(2, envinfo.mi_meta2_txnid, envinfo.mi_meta2_sign,
-                 envinfo.mi_bootid.meta2.h, envinfo.mi_bootid.meta2.l);
+                 envinfo.mi_bootid.meta2.x, envinfo.mi_bootid.meta2.y);
   }
 
   if (verbose > 1)