diff --git a/libraries/lib-files/FileNames.cpp b/libraries/lib-files/FileNames.cpp
index e98b9128f..b18c1f459 100644
--- a/libraries/lib-files/FileNames.cpp
+++ b/libraries/lib-files/FileNames.cpp
@@ -702,7 +702,7 @@ wxString FileNames::UnsavedProjectExtension()
 
 // How to detect whether the file system of a path is FAT
 // No apparent way to do it with wxWidgets
-#if defined(__DARWIN__)
+#if defined(__DARWIN__) || defined(__FreeBSD__)
 #include <sys/mount.h>
 bool FileNames::IsOnFATFileSystem(const FilePath &path)
 {