diff --git a/pom.xml b/pom.xml
index 3f20c66..3966443 100644
--- a/pom.xml
+++ b/pom.xml
@@ -97,6 +97,23 @@
 					</execution>
 				</executions>
 			</plugin>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-changes-plugin</artifactId>
+				<version>2.1</version>
+				<executions>
+					<execution>
+						<id>validate-changes</id>
+						<phase>pre-site</phase>
+						<goals>
+							<goal>changes-validate</goal>
+						</goals>
+						<configuration>
+							<failOnError>true</failOnError>
+						</configuration>
+					</execution>
+				</executions>
+			</plugin>
 		</plugins>
 	</build>
 	<reporting>
diff --git a/src/changes/changes.xml b/src/changes/changes.xml
index 78205b9..9443bda 100644
--- a/src/changes/changes.xml
+++ b/src/changes/changes.xml
@@ -1,10 +1,15 @@
-<document>
+<document xmlns="http://maven.apache.org/changes/1.0.0"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://maven.apache.org/changes/1.0.0 http://maven.apache.org/plugins/maven-changes-plugin/xsd/changes-1.0.0.xsd">
 	<properties>
 		<title>YAML 1.1 parser and emitter</title>
 		<author email="py4fun@gmail.com">Andrey Somov</author>
 	</properties>
 	<body>
 		<release version="1.2-SNAPSHOT" date="in Mercurial" description="development">
+            <action dev="py4fun" type="update">
+                Validate changes.xml file (2009-05-25)
+            </action>
             <action dev="py4fun" type="fix" due-to="Magne" issue="40">
                 Fix: getting an error when javabean contains java.sql.Timestamp fields (2009-05-25)
             </action>