diff --git a/akka-osgi/src/main/scala/akka/osgi/OsgiActorSystemFactory.scala b/akka-osgi/src/main/scala/akka/osgi/OsgiActorSystemFactory.scala
index 9069e5d06d..620e4bfc5a 100644
--- a/akka-osgi/src/main/scala/akka/osgi/OsgiActorSystemFactory.scala
+++ b/akka-osgi/src/main/scala/akka/osgi/OsgiActorSystemFactory.scala
@@ -44,10 +44,8 @@ class OsgiActorSystemFactory(val context: BundleContext, val fallbackClassLoader
   def actorSystemConfig(context: BundleContext): Config = {
     val bundleSymbolicName = context.getBundle.getSymbolicName
     val bundleId = context.getBundle.getBundleId
-    val acceptedFileExtension = List("conf", "properties", "json")
-    val acceptedFileName = List(s"bundle-$bundleSymbolicName", s"bundle-$bundleId", "akka")
-    val configurationFiles = acceptedFileName.flatMap(x => acceptedFileExtension.map(y => s"etc/$x.$y"))
-    val applicationConfiguration = configurationFiles.foldLeft(ConfigFactory.empty())((x, y) => x.withFallback(ConfigFactory.parseFileAnySyntax(new File(y))))
+    val acceptedFilePath = List(s"bundle-$bundleSymbolicName", s"bundle-$bundleId", "akka").map(x =>  s"etc/$x")
+    val applicationConfiguration = acceptedFilePath.foldLeft(ConfigFactory.empty())((x, y) => x.withFallback(ConfigFactory.parseFileAnySyntax(new File(y))))
     applicationConfiguration.withFallback(ConfigFactory.load(classloader).withFallback(ConfigFactory.defaultReference(OsgiActorSystemFactory.akkaActorClassLoader)))
   }