diff --git a/servers/slapd/back-mdb/libmdb b/servers/slapd/back-mdb/libmdb
index 399db15c7e..17f8d0a234 160000
--- a/servers/slapd/back-mdb/libmdb
+++ b/servers/slapd/back-mdb/libmdb
@@ -1 +1 @@
-Subproject commit 399db15c7e0d91b62f09232c35ecea6046cf7445
+Subproject commit 17f8d0a23455a6da1279c15484907fd87009e3db