diff --git a/org.osgi.core/pom.xml b/org.osgi.core/pom.xml
index 4d66ad5..34f0a7a 100644
--- a/org.osgi.core/pom.xml
+++ b/org.osgi.core/pom.xml
@@ -16,7 +16,7 @@
  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>