diff --git a/briar-core/src/test/java/org/briarproject/briar/test/BriarIntegrationTest.java b/briar-core/src/test/java/org/briarproject/briar/test/BriarIntegrationTest.java
index 266d3dabe..30ce6dbb1 100644
--- a/briar-core/src/test/java/org/briarproject/briar/test/BriarIntegrationTest.java
+++ b/briar-core/src/test/java/org/briarproject/briar/test/BriarIntegrationTest.java
@@ -164,6 +164,9 @@ public abstract class BriarIntegrationTest<C extends BriarIntegrationTestCompone
 		validationWaiter = new Waiter();
 		deliveryWaiter = new Waiter();
 		ackWaiter = new Waiter();
+		deliveryCounter.set(0);
+		validationCounter.set(0);
+		ackCounter.set(0);
 
 		createAndRegisterIdentities();
 		startLifecycles();