diff --git a/client/concurrentqueue.h b/client/concurrentqueue.h
index 245d9fb8..f587b45c 100755
--- a/client/concurrentqueue.h
+++ b/client/concurrentqueue.h
@@ -282,7 +282,7 @@ struct ConcurrentQueueDefaultTraits
 	// but many producers, a smaller block size should be favoured. For few producers
 	// and/or many elements, a larger block size is preferred. A sane default
 	// is provided. Must be a power of 2.
-	static const size_t BLOCK_SIZE = 32;
+	static const size_t BLOCK_SIZE = 128;
 	
 	// For explicit producers (i.e. when using a producer token), the block is
 	// checked for being empty by iterating through a list of flags, one per element.