diff --git a/src/gui/dlnashmon.cc b/src/gui/dlnashmon.cc
index b83951346..ea2d9e31f 100644
--- a/src/gui/dlnashmon.cc
+++ b/src/gui/dlnashmon.cc
@@ -27,6 +27,7 @@
 #include <wx/txtstrm.h>
 #include <wx/process.h>
 #include <wx/tokenzr.h>
+#include <cstring>
 #include <optional>
 #include <variant>
 #include "wx/sheet/sheet.h"