diff --git a/installers/pom.xml b/installers/pom.xml
index becae18..d042c74 100644
--- a/installers/pom.xml
+++ b/installers/pom.xml
@@ -17,7 +17,7 @@
  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">
   <modelVersion>4.0.0</modelVersion>
   <parent>
     <groupId>org.apache.felix</groupId>