diff --git a/streaming/src/test/scala/org/apache/spark/streaming/InputStreamsSuite.scala b/streaming/src/test/scala/org/apache/spark/streaming/InputStreamsSuite.scala
index 7df206241beb6a757f7d0fff588a50de8bff9bcb..389b23d4d5e4bd158494b9d0a71fc81196b7fe90 100644
--- a/streaming/src/test/scala/org/apache/spark/streaming/InputStreamsSuite.scala
+++ b/streaming/src/test/scala/org/apache/spark/streaming/InputStreamsSuite.scala
@@ -144,8 +144,8 @@ class InputStreamsSuite extends TestSuiteBase with BeforeAndAfter {
     conf.set("spark.streaming.clock", "org.apache.spark.streaming.util.ManualClock")
   }
 
-
-  test("actor input stream") {
+  // TODO: This test makes assumptions about Thread.sleep() and is flaky
+  ignore("actor input stream") {
     // Start the server
     val testServer = new TestServer()
     val port = testServer.port