diff --git a/prj/coherence-testing-support/src/main/java/com/oracle/coherence/testing/TestNonBlockingStore.java b/prj/coherence-testing-support/src/main/java/com/oracle/coherence/testing/TestNonBlockingStore.java
index aa6ec3bcb9515..480e276946439 100644
--- a/prj/coherence-testing-support/src/main/java/com/oracle/coherence/testing/TestNonBlockingStore.java
+++ b/prj/coherence-testing-support/src/main/java/com/oracle/coherence/testing/TestNonBlockingStore.java
@@ -292,7 +292,7 @@ public void store(BinaryEntry<K, V> binEntry, StoreObserver<K, V> observer)
                         }
                     }
 
-                delay(getDurationStore());
+                delay(getDurationStore() + 200);
                 getStorageMap().put(oKey, oValue);
                 getProcessor().process(binEntry);
                 observer.onNext(binEntry);