diff --git a/src/main/scala/mesosphere/marathon/core/plugin/impl/PluginManagerImpl.scala b/src/main/scala/mesosphere/marathon/core/plugin/impl/PluginManagerImpl.scala
index 40b735b4df2..e81c1e61bf8 100644
--- a/src/main/scala/mesosphere/marathon/core/plugin/impl/PluginManagerImpl.scala
+++ b/src/main/scala/mesosphere/marathon/core/plugin/impl/PluginManagerImpl.scala
@@ -42,7 +42,7 @@ private[plugin] class PluginManagerImpl(
       case _ => plugin
     }
     val serviceLoader = ServiceLoader.load(ct.runtimeClass.asInstanceOf[Class[T]], classLoader)
-    val providers = serviceLoader.iterator()
+    val providers = serviceLoader.iterator().toSeq
     val plugins = definitions.plugins.withFilter(_.plugin == ct.runtimeClass.getName).map { definition =>
       providers
         .find(_.getClass.getName == definition.implementation)