diff --git a/src/tools/syncqt/main.cpp b/src/tools/syncqt/main.cpp
index 03a80ef973..8a1692e5d4 100644
--- a/src/tools/syncqt/main.cpp
+++ b/src/tools/syncqt/main.cpp
@@ -19,6 +19,7 @@
 #include <iostream>
 #include <fstream>
 #include <string>
+#include <cstring>
 #include <sstream>
 #include <filesystem>
 #include <unordered_map>