diff --git a/reactos/modules/directory.xml b/reactos/modules/directory.xml
index 7c87ba9fcd9..fcea1b4d910 100644
--- a/reactos/modules/directory.xml
+++ b/reactos/modules/directory.xml
@@ -1,3 +1,17 @@
+<directory name="posix">
+	<xi:include href="posix/directory.xml">
+		<xi:fallback>
+			<xi:include href="empty.xml" />
+		</xi:fallback>
+	</xi:include>
+</directory>
+<directory name="os2">
+	<xi:include href="os2/directory.xml">
+		<xi:fallback>
+			<xi:include href="empty.xml" />
+		</xi:fallback>
+	</xi:include>
+</directory>
 <directory name="rosapps">
 	<xi:include href="rosapps/directory.xml">
 		<xi:fallback>
@@ -5,3 +19,10 @@
 		</xi:fallback>
 	</xi:include>
 </directory>
+<directory name="vms">
+	<xi:include href="vms/directory.xml">
+		<xi:fallback>
+			<xi:include href="empty.xml" />
+		</xi:fallback>
+	</xi:include>
+</directory>