diff --git a/webwolf/src/test/java/org/owasp/webwolf/mailbox/MailboxControllerTest.java b/webwolf/src/test/java/org/owasp/webwolf/mailbox/MailboxControllerTest.java
index 3c554a68d..326197eee 100644
--- a/webwolf/src/test/java/org/owasp/webwolf/mailbox/MailboxControllerTest.java
+++ b/webwolf/src/test/java/org/owasp/webwolf/mailbox/MailboxControllerTest.java
@@ -7,6 +7,7 @@ import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.mockito.Mockito;
+import org.owasp.webwolf.user.UserService;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
 import org.springframework.boot.test.mock.mockito.MockBean;
@@ -32,6 +33,8 @@ public class MailboxControllerTest {
     private MockMvc mvc;
     @MockBean
     private MailboxRepository mailbox;
+    @MockBean
+    private UserService userService;
     @Autowired
     private ObjectMapper objectMapper;