--- a/lib/fsplib/fsplib.h
+++ b/lib/fsplib/fsplib.h
@@ -3,6 +3,7 @@
#include <time.h>
#include <dirent.h>
#include <sys/stat.h>
+#include <sys/param.h>
#include <stddef.h>
/* The FSP v2 protocol support library - public interface */