diff --git a/backend/src/test/java/com/alttd/altitudeweb/services/chat/ChatServiceTest.java b/backend/src/test/java/com/alttd/altitudeweb/services/chat/ChatServiceTest.java
index 91763b2..c5c47f2 100644
--- a/backend/src/test/java/com/alttd/altitudeweb/services/chat/ChatServiceTest.java
+++ b/backend/src/test/java/com/alttd/altitudeweb/services/chat/ChatServiceTest.java
@@ -3,6 +3,7 @@ package com.alttd.altitudeweb.services.chat;
 import com.alttd.altitudeweb.controllers.chat.ChatMessage;
 import com.alttd.altitudeweb.controllers.chat.ChatMessageType;
 import com.alttd.altitudeweb.model.PermissionClaimDto;
+import com.alttd.altitudeweb.services.chat.event_publisher.EventPublisher;
 import com.alttd.altitudeweb.services.chat.event_publisher.EventUser;
 import com.alttd.altitudeweb.services.chat.event_publisher.MessageForUser;
 import org.junit.jupiter.api.BeforeEach;
@@ -25,7 +26,8 @@ class ChatServiceTest {
 
     @BeforeEach
     void setUp() {
-        chatService = spy(new ChatService());
+        EventPublisher eventPublisher = mock(EventPublisher.class);
+        chatService = spy(new ChatService(eventPublisher));
         ReflectionTestUtils.setField(chatService, "allowedServers", new String[]{"server1"});
     }