diff --git a/briar-core/src/test/java/org/briarproject/briar/client/MessageTreeImplTest.java b/briar-core/src/test/java/org/briarproject/briar/client/MessageTreeImplTest.java
index b1a457c8a..d2c825cc6 100644
--- a/briar-core/src/test/java/org/briarproject/briar/client/MessageTreeImplTest.java
+++ b/briar-core/src/test/java/org/briarproject/briar/client/MessageTreeImplTest.java
@@ -83,11 +83,6 @@ public class MessageTreeImplTest {
 
 		}
 
-		@Override
-		public void setDescendantCount(int descendantCount) {
-
-		}
-
 		@Override
 		public long getTimestamp() {
 			return timestamp;