diff --git a/toolbox/os_hfs_dispatch.cpp b/toolbox/os_hfs_dispatch.cpp
index 45db02e..6f40143 100644
--- a/toolbox/os_hfs_dispatch.cpp
+++ b/toolbox/os_hfs_dispatch.cpp
@@ -43,6 +43,7 @@
 #include <dirent.h>
 
 #include <strings.h>
+#include <sys/param.h>
 
 #include <cpu/defs.h>
 #include <cpu/CpuModule.h>