diff --git a/tests/log/logtest.cpp b/tests/log/logtest.cpp
index 7d859c7d00..8c24835b43 100644
--- a/tests/log/logtest.cpp
+++ b/tests/log/logtest.cpp
@@ -19,6 +19,7 @@
 
 #ifndef WX_PRECOMP
     #include "wx/log.h"
+    #include "wx/filefn.h"
 #endif // WX_PRECOMP
 
 #include "wx/scopeguard.h"