diff --git a/rtemsbsd/src/rtems-bsd-vm_glue.c b/rtemsbsd/src/rtems-bsd-vm_glue.c
index 96f6dc10..284f7d60 100644
--- a/rtemsbsd/src/rtems-bsd-vm_glue.c
+++ b/rtemsbsd/src/rtems-bsd-vm_glue.c
@@ -34,6 +34,7 @@
  */
 #include <freebsd/machine/rtems-bsd-config.h>
 
+#include <freebsd/sys/types.h>
 #include <sys/param.h>
 #include <sys/lock.h>
 #include <sys/sched.h>