diff --git a/libretroshare/src/util/rsdir.cc b/libretroshare/src/util/rsdir.cc
index 8556b8198..d63699216 100644
--- a/libretroshare/src/util/rsdir.cc
+++ b/libretroshare/src/util/rsdir.cc
@@ -47,6 +47,7 @@
 
 #include <fstream>
 #include <stdexcept>
+#include <filesystem>
 
 #if defined(WIN32) || defined(__CYGWIN__)
 #include "util/rsstring.h"