diff --git a/servers/slapd/schema/microsoft.ext.schema b/servers/slapd/schema/microsoft.ext.schema
index 393fbfd716..8f46866ba0 100644
--- a/servers/slapd/schema/microsoft.ext.schema
+++ b/servers/slapd/schema/microsoft.ext.schema
@@ -1,3 +1,5 @@
+# $OpenLDAP$
+
 # These definitions are from Microsoft's Active Directory.
 # They were gathered using the subschemaSubentry object of
 # Windows 2000 Advanced Server Release Candidate 2.
diff --git a/servers/slapd/schema/microsoft.schema b/servers/slapd/schema/microsoft.schema
index 6d4b4d8519..654fe156e6 100644
--- a/servers/slapd/schema/microsoft.schema
+++ b/servers/slapd/schema/microsoft.schema
@@ -1,3 +1,5 @@
+# $OpenLDAP$
+
 # These definitions are from Microsoft's Active Directory.
 # They were gathered using the subschemaSubentry object of
 # Windows 2000 Advanced Server Release Candidate 2.
diff --git a/servers/slapd/schema/microsoft.std.schema b/servers/slapd/schema/microsoft.std.schema
index d169187e23..fb9da9ef41 100644
--- a/servers/slapd/schema/microsoft.std.schema
+++ b/servers/slapd/schema/microsoft.std.schema
@@ -1,3 +1,5 @@
+# $OpenLDAP$
+
 # These definitions are from Microsoft's Active Directory.
 # They were gathered using the subschemaSubentry object of
 # Windows 2000 Advanced Server Release Candidate 2.