diff --git a/.gitignore b/.gitignore
index be6c5635d6..2d5c58c0be 100644
--- a/.gitignore
+++ b/.gitignore
@@ -174,6 +174,10 @@ servers/slapd/back-hdb/referral.c
 servers/slapd/back-hdb/search.c
 servers/slapd/back-hdb/tools.c
 servers/slapd/back-hdb/trans.c
+servers/slapd/back-mdb/mdb.c
+servers/slapd/back-mdb/mdb.h
+servers/slapd/back-mdb/midl.c
+servers/slapd/back-mdb/midl.h
 servers/slapd/backends.c
 servers/slapd/overlays/statover.c
 servers/slapd/slapacl