diff --git a/shared/src/AudioRingBuffer.cpp b/shared/src/AudioRingBuffer.cpp
index 48b916588b..d234a405e3 100644
--- a/shared/src/AudioRingBuffer.cpp
+++ b/shared/src/AudioRingBuffer.cpp
@@ -6,6 +6,7 @@
 //  Copyright (c) 2013 HighFidelity, Inc. All rights reserved.
 //
 
+#include <cstring>
 #include "AudioRingBuffer.h"
 
 AudioRingBuffer::AudioRingBuffer() {