diff --git a/src/system/kernel/fs/rootfs.cpp b/src/system/kernel/fs/rootfs.cpp
index e16329ab17..90526ec554 100644
--- a/src/system/kernel/fs/rootfs.cpp
+++ b/src/system/kernel/fs/rootfs.cpp
@@ -8,10 +8,12 @@
 
 
 #if FS_SHELL
-#	include <new>
-
 #	include "fssh_api_wrapper.h"
 
+#	undef size_t
+#	include <new>
+#	define size_t fssh_size_t
+
 #	include "KOpenHashTable.h"
 #	include "list.h"
 #else