diff --git a/include/mdbtools.h b/include/mdbtools.h
index 5b93cfb..171da38 100644
--- a/include/mdbtools.h
+++ b/include/mdbtools.h
@@ -247,6 +247,7 @@ typedef struct {
 	/* reference count */
 	int refs;
 	guint16 code_page;
+	guint16 lang_id;
 } MdbFile; 
 
 /* offset to row count on data pages...version dependant */
diff --git a/src/libmdb/file.c b/src/libmdb/file.c
index 09e5b70..636fb32 100644
--- a/src/libmdb/file.c
+++ b/src/libmdb/file.c
@@ -231,6 +231,11 @@ static MdbHandle *mdb_handle_from_stream(FILE *stream, MdbFileFlags flags) {
     RC4_set_key(&rc4_key, 4, (unsigned char *)&tmp_key);
     RC4(&rc4_key, mdb->f->jet_version == MDB_VER_JET3 ? 126 : 128, mdb->pg_buf + 0x18);
 
+	if (mdb->f->jet_version == MDB_VER_JET3) {
+		mdb->f->lang_id = mdb_get_int16(mdb->pg_buf, 0x3a);
+	} else {
+		mdb->f->lang_id = mdb_get_int16(mdb->pg_buf, 0x6e);
+	}
 	mdb->f->code_page = mdb_get_int16(mdb->pg_buf, 0x3c);
 	mdb->f->db_key = mdb_get_int32(mdb->pg_buf, 0x3e);
     if (mdb->f->jet_version == MDB_VER_JET3) {
diff --git a/src/libmdb/index.c b/src/libmdb/index.c
index 6fa7a5a..1717190 100644
--- a/src/libmdb/index.c
+++ b/src/libmdb/index.c
@@ -389,7 +389,7 @@ mdb_index_hash_text(MdbHandle *mdb, char *text, char *hash)
 			out_ptr[i*2] = text[i];
 			out_ptr[i*2+1] = 0;
 		}
-        if (!(k=DBLCMapStringW(MAKELCID(MAKELANGID(LANG_ENGLISH, SUBLANG_DEFAULT), 0),
+        if (!(k=DBLCMapStringW(MAKELCID(mdb->f->lang_id, 0),
                 LCMAP_LINGUISTIC_CASING | LCMAP_SORTKEY | NORM_IGNORECASE | NORM_IGNOREKANATYPE | NORM_IGNOREWIDTH,
                 (WCHAR*)out_ptr, len, (LPBYTE)hash, len*2)))
 		{