diff --git a/amazon-kinesis-client/src/test/java/software/amazon/kinesis/lifecycle/ShardConsumerSubscriberTest.java b/amazon-kinesis-client/src/test/java/software/amazon/kinesis/lifecycle/ShardConsumerSubscriberTest.java
index 7d0f9633..b628abe6 100644
--- a/amazon-kinesis-client/src/test/java/software/amazon/kinesis/lifecycle/ShardConsumerSubscriberTest.java
+++ b/amazon-kinesis-client/src/test/java/software/amazon/kinesis/lifecycle/ShardConsumerSubscriberTest.java
@@ -400,6 +400,7 @@ public class ShardConsumerSubscriberTest {
         // First try to start subscriptions.
         synchronized (processedNotifier) {
             subscriber.startSubscriptions();
+            processedNotifier.wait(100);
         }
 
         // Verifying that there are no interactions with shardConsumer mock indicating no records were sent back and