diff --git a/reactos/base/system/autochk/autochk.xml b/reactos/base/system/autochk/autochk.rbuild
similarity index 80%
rename from reactos/base/system/autochk/autochk.xml
rename to reactos/base/system/autochk/autochk.rbuild
index 9dba21cfb56..ef25a91b909 100644
--- a/reactos/base/system/autochk/autochk.xml
+++ b/reactos/base/system/autochk/autochk.rbuild
@@ -1,3 +1,5 @@
+<?xml version="1.0"?>
+<!DOCTYPE project SYSTEM "tools/rbuild/project.dtd">
 <module name="autochk" type="nativecui" installbase="system32" installname="autochk.exe">
 	<include base="autochk">.</include>
 	<define name="__USE_W32API" />
diff --git a/reactos/base/system/expand/expand.xml b/reactos/base/system/expand/expand.rbuild
similarity index 84%
rename from reactos/base/system/expand/expand.xml
rename to reactos/base/system/expand/expand.rbuild
index 316a2b1a113..a66145f4764 100644
--- a/reactos/base/system/expand/expand.xml
+++ b/reactos/base/system/expand/expand.rbuild
@@ -1,3 +1,5 @@
+<?xml version="1.0"?>
+<!DOCTYPE project SYSTEM "tools/rbuild/project.dtd">
 <module name="expand" type="win32cui" installbase="system32" installname="expand.exe" usewrc="false">
 	<include base="ReactOS">include/wine</include>
 	<include base="cmd">.</include>
diff --git a/reactos/base/system/format/format.xml b/reactos/base/system/format/format.rbuild
similarity index 80%
rename from reactos/base/system/format/format.xml
rename to reactos/base/system/format/format.rbuild
index c3958baa1f7..35061db70ae 100644
--- a/reactos/base/system/format/format.xml
+++ b/reactos/base/system/format/format.rbuild
@@ -1,3 +1,5 @@
+<?xml version="1.0"?>
+<!DOCTYPE project SYSTEM "tools/rbuild/project.dtd">
 <module name="format" type="win32cui" installbase="system32" installname="format.exe" allowwarnings="true">
 	<include base="format">.</include>
 	<define name="__USE_W32API" />
diff --git a/reactos/base/system/lsass/lsass.xml b/reactos/base/system/lsass/lsass.rbuild
similarity index 80%
rename from reactos/base/system/lsass/lsass.xml
rename to reactos/base/system/lsass/lsass.rbuild
index 0954a7751d7..8d947cc2cc4 100644
--- a/reactos/base/system/lsass/lsass.xml
+++ b/reactos/base/system/lsass/lsass.rbuild
@@ -1,3 +1,5 @@
+<?xml version="1.0"?>
+<!DOCTYPE project SYSTEM "tools/rbuild/project.dtd">
 <module name="lsass" type="win32gui" installbase="system32" installname="lsass.exe">
 	<include base="lsass">.</include>
 	<define name="UNICODE" />
diff --git a/reactos/base/system/regsvr32/regsvr32.xml b/reactos/base/system/regsvr32/regsvr32.rbuild
similarity index 82%
rename from reactos/base/system/regsvr32/regsvr32.xml
rename to reactos/base/system/regsvr32/regsvr32.rbuild
index 69181a94306..90026e51823 100644
--- a/reactos/base/system/regsvr32/regsvr32.xml
+++ b/reactos/base/system/regsvr32/regsvr32.rbuild
@@ -1,3 +1,5 @@
+<?xml version="1.0"?>
+<!DOCTYPE project SYSTEM "tools/rbuild/project.dtd">
 <module name="regsvr32" type="win32gui" installbase="system32" installname="regsvr32.exe">
 	<include base="regsvr32">.</include>
 	<define name="UNICODE" />
diff --git a/reactos/base/system/rundll32/rundll32.xml b/reactos/base/system/rundll32/rundll32.rbuild
similarity index 80%
rename from reactos/base/system/rundll32/rundll32.xml
rename to reactos/base/system/rundll32/rundll32.rbuild
index f1ff22b13b8..cdc7ac106f5 100644
--- a/reactos/base/system/rundll32/rundll32.xml
+++ b/reactos/base/system/rundll32/rundll32.rbuild
@@ -1,3 +1,5 @@
+<?xml version="1.0"?>
+<!DOCTYPE project SYSTEM "tools/rbuild/project.dtd">
 <module name="rundll32" type="win32gui" installbase="system32" installname="rundll32.exe">
 	<include base="rundll32">.</include>
 	<define name="UNICODE" />
diff --git a/reactos/base/system/services/services.xml b/reactos/base/system/services/services.rbuild
similarity index 89%
rename from reactos/base/system/services/services.xml
rename to reactos/base/system/services/services.rbuild
index b64b025d3a2..9cb19a66106 100644
--- a/reactos/base/system/services/services.xml
+++ b/reactos/base/system/services/services.rbuild
@@ -1,3 +1,5 @@
+<?xml version="1.0"?>
+<!DOCTYPE project SYSTEM "tools/rbuild/project.dtd">
 <module name="services" type="win32cui" installbase="system32" installname="services.exe">
 	<include base="services">.</include>
 	<include base="scm_server">.</include>
diff --git a/reactos/base/system/userinit/userinit.xml b/reactos/base/system/userinit/userinit.rbuild
similarity index 84%
rename from reactos/base/system/userinit/userinit.xml
rename to reactos/base/system/userinit/userinit.rbuild
index b2b2f0afe0e..b797c50559a 100644
--- a/reactos/base/system/userinit/userinit.xml
+++ b/reactos/base/system/userinit/userinit.rbuild
@@ -1,3 +1,5 @@
+<?xml version="1.0"?>
+<!DOCTYPE project SYSTEM "tools/rbuild/project.dtd">
 <module name="userinit" type="win32gui" installbase="system32" installname="userinit.exe">
 	<include base="userinit">.</include>
 	<define name="UNICODE" />
diff --git a/reactos/base/system/winlogon/winlogon.xml b/reactos/base/system/winlogon/winlogon.rbuild
similarity index 87%
rename from reactos/base/system/winlogon/winlogon.xml
rename to reactos/base/system/winlogon/winlogon.rbuild
index 496764b2d5a..a6724137609 100644
--- a/reactos/base/system/winlogon/winlogon.xml
+++ b/reactos/base/system/winlogon/winlogon.rbuild
@@ -1,3 +1,5 @@
+<?xml version="1.0"?>
+<!DOCTYPE project SYSTEM "tools/rbuild/project.dtd">
 <module name="winlogon" type="win32gui" installbase="system32" installname="winlogon.exe">
 	<include base="winlogon">.</include>
 	<define name="UNICODE" />