diff --git a/libraries/liblmdb/CHANGES b/libraries/liblmdb/CHANGES
index 2b326350b8..8175da9f5d 100644
--- a/libraries/liblmdb/CHANGES
+++ b/libraries/liblmdb/CHANGES
@@ -1,5 +1,8 @@
 LMDB 0.9 Change Log
 
+LMDB 0.9.35 Release (2026/01/27)
+    ITS#10434 - Fix typo affecting Mac OSX
+
 LMDB 0.9.34 Release (2026/01/26)
 	ITS#9564 - fix race condition freeing spilled pages at end of transaction
 	ITS#10222 - Update mdb_dump(1) and mdb_load(1) man pages for append (-a) option
diff --git a/libraries/liblmdb/lmdb.h b/libraries/liblmdb/lmdb.h
index a206cf756d..6a1d1563ce 100644
--- a/libraries/liblmdb/lmdb.h
+++ b/libraries/liblmdb/lmdb.h
@@ -200,7 +200,7 @@ typedef int mdb_filehandle_t;
 /** Library minor version */
 #define MDB_VERSION_MINOR	9
 /** Library patch version */
-#define MDB_VERSION_PATCH	34
+#define MDB_VERSION_PATCH	35
 
 /** Combine args a,b,c into a single integer for easy version comparisons */
 #define MDB_VERINT(a,b,c)	(((a) << 24) | ((b) << 16) | (c))
@@ -210,7 +210,7 @@ typedef int mdb_filehandle_t;
 	MDB_VERINT(MDB_VERSION_MAJOR,MDB_VERSION_MINOR,MDB_VERSION_PATCH)
 
 /** The release date of this library version */
-#define MDB_VERSION_DATE	"Jan 26, 2026"
+#define MDB_VERSION_DATE	"Jan 27, 2026"
 
 /** A stringifier for the version info */
 #define MDB_VERSTR(a,b,c,d)	"LMDB " #a "." #b "." #c ": (" d ")"
diff --git a/libraries/liblmdb/mdb.c b/libraries/liblmdb/mdb.c
index 1cec612013..9fcc6f90b9 100644
--- a/libraries/liblmdb/mdb.c
+++ b/libraries/liblmdb/mdb.c
@@ -129,7 +129,7 @@ typedef SSIZE_T	ssize_t;
 #elif defined(__APPLE__) || defined (BSD) || defined(__FreeBSD_kernel__)
 # define MDB_USE_POSIX_SEM	1
 # if defined(__APPLE__)
-#  define MDB_FDATASYNC		fcntl(fd, F_FULLFSYNC)
+#  define MDB_FDATASYNC(fd)		fcntl(fd, F_FULLFSYNC)
 # else
 #  define MDB_FDATASYNC		fsync
 # endif