diff --git a/reactos/drivers/bus/directory.rbuild b/reactos/drivers/bus/directory.rbuild
index 791a34cde04..a6904a2b137 100644
--- a/reactos/drivers/bus/directory.rbuild
+++ b/reactos/drivers/bus/directory.rbuild
@@ -1,9 +1,9 @@
 <?xml version="1.0"?>
 <!DOCTYPE group SYSTEM "../../tools/rbuild/project.dtd">
 <group xmlns:xi="http://www.w3.org/2001/XInclude">
-<!-- directory name="acpi">
+<directory name="acpi">
 	<xi:include href="acpi/acpi.rbuild" />
-</directory-->
+</directory>
 <directory name="isapnp">
 	<xi:include href="isapnp/isapnp.rbuild" />
 </directory>