diff --git a/backend/src/test/java/org/raddatz/familienarchiv/service/PersonMentionPropagationListenerTest.java b/backend/src/test/java/org/raddatz/familienarchiv/service/PersonMentionPropagationListenerTest.java
index 6ba99cb1..c6b89716 100644
--- a/backend/src/test/java/org/raddatz/familienarchiv/service/PersonMentionPropagationListenerTest.java
+++ b/backend/src/test/java/org/raddatz/familienarchiv/service/PersonMentionPropagationListenerTest.java
@@ -26,6 +26,7 @@ import java.util.List;
 import java.util.UUID;
 
 import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatCode;
 
 @DataJpaTest
 @AutoConfigureTestDatabase(replace = AutoConfigureTestDatabase.Replace.NONE)
@@ -195,6 +196,17 @@ class PersonMentionPropagationListenerTest {
         assertThat(first.getText()).contains("@Augusta Raddatz");
     }
 
+    @Test
+    void doesNotThrow_whenBlockTextIsNull() {
+        UUID personId = savedPersonId("Auguste", "Raddatz");
+        saveBlock(null, List.of(new PersonMention(personId, "Auguste Raddatz")));
+        em.clear();
+
+        assertThatCode(() -> listener.onPersonDisplayNameChanged(
+                new PersonDisplayNameChangedEvent(personId, "Auguste Raddatz", "Augusta Raddatz")))
+                .doesNotThrowAnyException();
+    }
+
     @Test
     void leavesUnrelatedBlockUntouched_whenNoSidecarReferencesPerson() {
         UUID personId = savedPersonId("Auguste", "Raddatz");