diff --git a/azkaban-common/src/main/java/azkaban/project/ProjectManager.java b/azkaban-common/src/main/java/azkaban/project/ProjectManager.java
index <HASH>..<HASH> 100644
--- a/azkaban-common/src/main/java/azkaban/project/ProjectManager.java
+++ b/azkaban-common/src/main/java/azkaban/project/ProjectManager.java
@@ -80,6 +80,7 @@ public class ProjectManager {
     // initialize itself.
     Props prop = new Props(props);
     prop.put(ValidatorConfigs.PROJECT_ARCHIVE_FILE_PATH, "initialize");
+    new XmlValidatorManager(prop);
     loadAllProjects();
   }
Validate the configurations of the validator plugins when the Azkaban web server starts.