diff --git a/mdb_chk.c b/mdb_chk.c
index 228bf133..42734c8d 100644
--- a/mdb_chk.c
+++ b/mdb_chk.c
@@ -366,8 +366,6 @@ static int process_db(MDB_dbi dbi, char *name, visitor *handler, int silent)
 		if (! flags)
 			print(" none");
 		else {
-			/* if (flags & MDB_DUPSORT)
-				print(" duplicates"); */
 			for (i=0; dbflags[i].bit; i++)
 				if (flags & dbflags[i].bit)
 					print(" %s", dbflags[i].name);
diff --git a/mdb_dump.c b/mdb_dump.c
index 66908ff5..118b746d 100644
--- a/mdb_dump.c
+++ b/mdb_dump.c
@@ -120,9 +120,6 @@ static int dumpit(MDB_txn *txn, MDB_dbi dbi, char *name)
 		printf("mapaddr=%p\n", info.me_mapaddr);
 	printf("maxreaders=%u\n", info.me_maxreaders);
 
-	if (flags & MDB_DUPSORT)
-		printf("duplicates=1\n");
-
 	for (i=0; dbflags[i].bit; i++)
 		if (flags & dbflags[i].bit)
 			printf("%s=1\n", dbflags[i].name);
diff --git a/mdb_load.c b/mdb_load.c
index bb18232a..5cbbd0d5 100644
--- a/mdb_load.c
+++ b/mdb_load.c
@@ -70,7 +70,11 @@ static void readhdr(void)
 
 	while (fgets(dbuf.mv_data, dbuf.mv_size, stdin) != NULL) {
 		lineno++;
-		if (!strncmp(dbuf.mv_data, "VERSION=", STRLENOF("VERSION="))) {
+		if (!strncmp(dbuf.mv_data, "db_pagesize=", STRLENOF("db_pagesize="))
+			|| !strncmp(dbuf.mv_data, "duplicates=", STRLENOF("duplicates="))) {
+			/* LY: silently ignore information fields. */
+			continue;
+		} else if (!strncmp(dbuf.mv_data, "VERSION=", STRLENOF("VERSION="))) {
 			version=atoi((char *)dbuf.mv_data+STRLENOF("VERSION="));
 			if (version > 3) {
 				fprintf(stderr, "%s: line %" Z "d: unsupported VERSION %d\n",