diff --git a/Source/Core/VideoBackends/OGL/BoundingBox.cpp b/Source/Core/VideoBackends/OGL/BoundingBox.cpp
index c4c0012ddc..2923b9c2c4 100644
--- a/Source/Core/VideoBackends/OGL/BoundingBox.cpp
+++ b/Source/Core/VideoBackends/OGL/BoundingBox.cpp
@@ -2,6 +2,8 @@
 // Licensed under GPLv2+
 // Refer to the license.txt file included.
 
+#include <cstring>
+
 #include "Common/GL/GLUtil.h"
 
 #include "VideoBackends/OGL/BoundingBox.h"