diff --git a/account/src/main/java/de/muehlencord/shared/account/business/AbstractController.java b/account/src/main/java/de/muehlencord/shared/account/business/AbstractController.java
index 92926aa..de871ff 100644
--- a/account/src/main/java/de/muehlencord/shared/account/business/AbstractController.java
+++ b/account/src/main/java/de/muehlencord/shared/account/business/AbstractController.java
@@ -91,7 +91,7 @@ public abstract class AbstractController<T> {
     @TransactionAttribute(TransactionAttributeType.REQUIRED)
     @Transactional
     @Lock(LockType.WRITE)
-    public void delete(T entity) {
+    public void delete(T entity) throws ControllerException {
         em.remove(attach(entity));
     }
 
diff --git a/account/src/main/java/de/muehlencord/shared/account/business/ControllerException.java b/account/src/main/java/de/muehlencord/shared/account/business/ControllerException.java
index dc17cf2..4e6bdd6 100644
--- a/account/src/main/java/de/muehlencord/shared/account/business/ControllerException.java
+++ b/account/src/main/java/de/muehlencord/shared/account/business/ControllerException.java
@@ -26,6 +26,7 @@ public class ControllerException extends Exception {
     public static final int CAUSE_NOT_FOUND = 2;
     public static final int CAUSE_CANNOT_PERSIST = 3;
     public static final int CAUSE_TOO_MANY_ROWS = 4;
+    public static final int CAUSE_CANNOT_DELETE = 5;
 
     private final int causeCode;