Index: kernel/generic/include/syscall/copy.h
===================================================================
--- kernel/generic/include/syscall/copy.h	(revision af9dd1ed6f5d79cc098da33ff7131162b1c177a4)
+++ kernel/generic/include/syscall/copy.h	(revision 84a1a546f62a2ba0f913f8f1bfce8d4bc68d7aa4)
@@ -36,5 +36,5 @@
 #define KERN_COPY_H_
 
-#include <typedefs.h>
+#include <stddef.h>
 
 /** Label within memcpy_from_uspace() that contains return -1. */