diff --git a/include/syscon.h b/include/syscon.h
index 0234406a29154a71e09d48df747216ae43ae2148..8d650fc5f085f953f7eb08b60b1409c9a0424136 100644
--- a/include/syscon.h
+++ b/include/syscon.h
@@ -2,6 +2,7 @@
 #define __SYSCON_H
 
 #include <inttypes.h>
+#include <sys/types.h>
 
 #include "board.h"
 #undef PACKED /* if we already included a regs file, we'd get a warning */
diff --git a/include/wrc.h b/include/wrc.h
index 6809ec81ca93f3686bcb37b26de44496bb37b2c4..ad2da1819abb9306b3f7a99c142667f1183ed1cf 100644
--- a/include/wrc.h
+++ b/include/wrc.h
@@ -8,6 +8,7 @@
  * Also, this brings in very common and needed headers
  */
 #include <inttypes.h>
+#include <syscon.h>
 #include <pp-printf.h>
 #define mprintf pp_printf
 #define vprintf pp_vprintf