diff --git a/org.osgi.compendium/pom.xml b/org.osgi.compendium/pom.xml
index 1ddc4a7..4b02421 100644
--- a/org.osgi.compendium/pom.xml
+++ b/org.osgi.compendium/pom.xml
@@ -15,7 +15,7 @@
  KIND, either express or implied.  See the License for the
  specific language governing permissions and limitations
  under the License. -->
-<project>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <parent>
     <groupId>org.apache.felix</groupId>
     <artifactId>felix</artifactId>