diff --git a/src/config/FreeDVConfiguration.cpp b/src/config/FreeDVConfiguration.cpp
index 2ac2a55d..0e965e2e 100644
--- a/src/config/FreeDVConfiguration.cpp
+++ b/src/config/FreeDVConfiguration.cpp
@@ -20,6 +20,7 @@
 //==========================================================================
 
 #include <wx/stdpaths.h>
+#include <wx/filename.h>
 
 #include "../defines.h"
 #include "FreeDVConfiguration.h"