diff --git a/skills/quarkus-tdd/SKILL.md b/skills/quarkus-tdd/SKILL.md
index 9d977cce..c9dd4153 100644
--- a/skills/quarkus-tdd/SKILL.md
+++ b/skills/quarkus-tdd/SKILL.md
@@ -445,8 +445,8 @@ class EventServiceTest {
       Object nullPayload = null;
       
       // ACT & ASSERT
-      IllegalArgumentException exception = assertThrows(
-          IllegalArgumentException.class,
+      NullPointerException exception = assertThrows(
+          NullPointerException.class,
           () -> eventService.createSuccessEvent(nullPayload, "EVENT_TYPE")
       );