diff --git a/src/nodes/QskArcShadowNode.cpp b/src/nodes/QskArcShadowNode.cpp
index bbd07bf9..d72128e1 100644
--- a/src/nodes/QskArcShadowNode.cpp
+++ b/src/nodes/QskArcShadowNode.cpp
@@ -12,6 +12,8 @@
 #include <qsgmaterialshader.h>
 #include <qmath.h>
 
+#include <cstring>
+
 QSK_QT_PRIVATE_BEGIN
 #include <private/qsgnode_p.h>
 QSK_QT_PRIVATE_END