diff --git a/server/src/main/java/org/elasticsearch/cluster/project/ProjectStateRegistry.java b/server/src/main/java/org/elasticsearch/cluster/project/ProjectStateRegistry.java
index 51e9fb90507ab..2876ebc13c70c 100644
--- a/server/src/main/java/org/elasticsearch/cluster/project/ProjectStateRegistry.java
+++ b/server/src/main/java/org/elasticsearch/cluster/project/ProjectStateRegistry.java
@@ -145,6 +145,18 @@ Map<ProjectId, Settings> getProjectsSettings() {
         return Collections.unmodifiableMap(projectsSettings);
     }
 
+    @Override
+    public String toString() {
+        return "ProjectStateRegistry["
+            + "projectsSettings="
+            + projectsSettings
+            + ", projectsMarkedForDeletion="
+            + projectsMarkedForDeletion
+            + ", projectsMarkedForDeletionGeneration="
+            + projectsMarkedForDeletionGeneration
+            + ']';
+    }
+
     @Override
     public boolean equals(Object o) {
         if (this == o) return true;