diff --git a/plugin-parent/project.properties b/plugin-parent/project.properties
index 553b06dd..597328a2 100644
--- a/plugin-parent/project.properties
+++ b/plugin-parent/project.properties
@@ -58,3 +58,5 @@ maven.repo.apachecvs.username=${maven.repo.apache.username}
 maven.repo.apachecvs.privatekey=${maven.repo.apache.privatekey}
 maven.repo.apachecvs.passphrase=${maven.repo.apache.passphrase}
 maven.repo.apachecvs.group=maven
+
+maven.multiproject.type=plugin