diff --git a/akka-cluster/src/multi-jvm/scala/akka/cluster/JoinTwoClustersSpec.scala b/akka-cluster/src/multi-jvm/scala/akka/cluster/JoinTwoClustersSpec.scala
index f4ea161b2a..4b64bb6e58 100644
--- a/akka-cluster/src/multi-jvm/scala/akka/cluster/JoinTwoClustersSpec.scala
+++ b/akka-cluster/src/multi-jvm/scala/akka/cluster/JoinTwoClustersSpec.scala
@@ -17,7 +17,7 @@ object JoinTwoClustersMultiJvmSpec extends MultiNodeConfig {
   val c1 = role("c1")
   val c2 = role("c2")
 
-  commonConfig(debugConfig(on = true).withFallback(MultiNodeClusterSpec.clusterConfig))
+  commonConfig(debugConfig(on = false).withFallback(MultiNodeClusterSpec.clusterConfig))
 }
 
 class JoinTwoClustersMultiJvmNode1 extends JoinTwoClustersSpec with FailureDetectorPuppetStrategy
diff --git a/akka-cluster/src/multi-jvm/scala/akka/cluster/SunnyWeatherSpec.scala b/akka-cluster/src/multi-jvm/scala/akka/cluster/SunnyWeatherSpec.scala
index b8486841c6..6f3ddfc866 100644
--- a/akka-cluster/src/multi-jvm/scala/akka/cluster/SunnyWeatherSpec.scala
+++ b/akka-cluster/src/multi-jvm/scala/akka/cluster/SunnyWeatherSpec.scala
@@ -21,18 +21,17 @@ object SunnyWeatherMultiJvmSpec extends MultiNodeConfig {
 
   commonConfig(ConfigFactory.parseString("""
     akka.cluster {
-      gossip-interval    = 400 ms
       nr-of-deputy-nodes = 0
     }
     akka.loglevel = INFO
     """))
 }
 
-class SunnyWeatherMultiJvmNode1 extends SunnyWeatherSpec with FailureDetectorPuppetStrategy
-class SunnyWeatherMultiJvmNode2 extends SunnyWeatherSpec with FailureDetectorPuppetStrategy
-class SunnyWeatherMultiJvmNode3 extends SunnyWeatherSpec with FailureDetectorPuppetStrategy
-class SunnyWeatherMultiJvmNode4 extends SunnyWeatherSpec with FailureDetectorPuppetStrategy
-class SunnyWeatherMultiJvmNode5 extends SunnyWeatherSpec with FailureDetectorPuppetStrategy
+class SunnyWeatherMultiJvmNode1 extends SunnyWeatherSpec with AccrualFailureDetectorStrategy
+class SunnyWeatherMultiJvmNode2 extends SunnyWeatherSpec with AccrualFailureDetectorStrategy
+class SunnyWeatherMultiJvmNode3 extends SunnyWeatherSpec with AccrualFailureDetectorStrategy
+class SunnyWeatherMultiJvmNode4 extends SunnyWeatherSpec with AccrualFailureDetectorStrategy
+class SunnyWeatherMultiJvmNode5 extends SunnyWeatherSpec with AccrualFailureDetectorStrategy
 
 abstract class SunnyWeatherSpec
   extends MultiNodeSpec(SunnyWeatherMultiJvmSpec)