diff --git a/ChangeLog.txt b/ChangeLog.txt
index 7db9c65b36..6c87ac1e9f 100644
--- a/ChangeLog.txt
+++ b/ChangeLog.txt
@@ -7,6 +7,12 @@
    Entries may not always be in chronological/commit order.
    See license at the end of file. */
 
+2025-11-17 14:14 UTC+0200 Aleksander Czajczynski (hb fki.pl)
+  ; sync macros in-line with Viktor's fork:
+    2015-06-16 01:41 UTC+0200 Viktor Szakats (vszakats users.noreply.github.com)
+  * include/hbdefs.h
+    + add HB_PUT_UINT64(), HB_GET_UINT64() macros
+
 2025-11-17 09:58 UTC+0200 Aleksander Czajczynski (hb fki.pl)
   + include/hbcrypto.h
     ! actually add the file, missed from the push...
diff --git a/include/hbdefs.h b/include/hbdefs.h
index 41fa8a6916..97dd67544e 100644
--- a/include/hbdefs.h
+++ b/include/hbdefs.h
@@ -846,9 +846,13 @@ typedef HB_U32 HB_FATTR;
 #if defined( HB_BIG_ENDIAN )
 #  define   HB_PUT_UINT32( p, v )   HB_PUT_BE_UINT32( p, ( HB_U32 ) ( v ) )
 #  define   HB_GET_UINT32( p )      HB_GET_BE_UINT32( p )
+#  define   HB_PUT_UINT64( p, v )   HB_PUT_BE_UINT64( p, ( HB_U64 ) ( v ) )
+#  define   HB_GET_UINT64( p )      HB_GET_BE_UINT64( p )
 #else
 #  define   HB_PUT_UINT32( p, v )   HB_PUT_LE_UINT32( p, ( HB_U32 ) ( v ) )
 #  define   HB_GET_UINT32( p )      HB_GET_LE_UINT32( p )
+#  define   HB_PUT_UINT64( p, v )   HB_PUT_LE_UINT64( p, ( HB_U64 ) ( v ) )
+#  define   HB_GET_UINT64( p )      HB_GET_LE_UINT64( p )
 #endif
 
 /* Macros to store/retrieve integer and double values at/from byte address */