diff --git a/model/map/src/main/java/org/keycloak/models/map/storage/chm/ConcurrentHashMapKeycloakTransaction.java b/model/map/src/main/java/org/keycloak/models/map/storage/chm/ConcurrentHashMapKeycloakTransaction.java
index 9ef5f573fe5..705aa945bac 100644
--- a/model/map/src/main/java/org/keycloak/models/map/storage/chm/ConcurrentHashMapKeycloakTransaction.java
+++ b/model/map/src/main/java/org/keycloak/models/map/storage/chm/ConcurrentHashMapKeycloakTransaction.java
@@ -249,7 +249,7 @@ public class ConcurrentHashMapKeycloakTransaction<K, V extends AbstractEntity &
 
     @Override
     public boolean delete(String key) {
-        addTask(key, new DeleteOperation(key));
+        tasks.merge(key, new DeleteOperation(key), this::merge);
         return true;
     }