diff --git a/akka-cluster-metrics/src/multi-jvm/scala/akka/cluster/metrics/ClusterMetricsRoutingSpec.scala b/akka-cluster-metrics/src/multi-jvm/scala/akka/cluster/metrics/ClusterMetricsRoutingSpec.scala
index 15d6f2b93d..aedcbb1d1f 100644
--- a/akka-cluster-metrics/src/multi-jvm/scala/akka/cluster/metrics/ClusterMetricsRoutingSpec.scala
+++ b/akka-cluster-metrics/src/multi-jvm/scala/akka/cluster/metrics/ClusterMetricsRoutingSpec.scala
@@ -73,7 +73,7 @@ object AdaptiveLoadBalancingRouterConfig extends MultiNodeConfig {
       # Enable metrics estension.
       akka.extensions=["akka.cluster.metrics.ClusterMetricsExtension"]
 
-      akka.failure-detector.acceptable-heartbeat-pause = 10s
+      akka.cluster.failure-detector.acceptable-heartbeat-pause = 10s
 
       # Use rapid metrics collection.
       akka.cluster.metrics {
diff --git a/akka-cluster/src/multi-jvm/scala/akka/cluster/routing/AdaptiveLoadBalancingRouterSpec.scala b/akka-cluster/src/multi-jvm/scala/akka/cluster/routing/AdaptiveLoadBalancingRouterSpec.scala
index 045552b3a2..aae1a13dc2 100644
--- a/akka-cluster/src/multi-jvm/scala/akka/cluster/routing/AdaptiveLoadBalancingRouterSpec.scala
+++ b/akka-cluster/src/multi-jvm/scala/akka/cluster/routing/AdaptiveLoadBalancingRouterSpec.scala
@@ -58,7 +58,7 @@ object AdaptiveLoadBalancingRouterMultiJvmSpec extends MultiNodeConfig {
   val third = role("third")
 
   commonConfig(debugConfig(on = false).withFallback(ConfigFactory.parseString("""
-      akka.failure-detector.acceptable-heartbeat-pause = 10s
+      akka.cluster.failure-detector.acceptable-heartbeat-pause = 10s
       akka.cluster.metrics.collect-interval = 1s
       akka.cluster.metrics.gossip-interval = 1s
       akka.cluster.metrics.moving-average-half-life = 2s