diff --git a/sys/include/sys/kern_sysctl.h b/sys/include/sys/kern_sysctl.h
index 2820992..d13bc2a 100644
--- a/sys/include/sys/kern_sysctl.h
+++ b/sys/include/sys/kern_sysctl.h
@@ -31,6 +31,7 @@
 
 #include <sys/sysproto_posix.h>
 #include <sys/thread.h>
+#include <vmm/mmap.h>
 
 #define CTL_MAXNAME     24      /* largest number of components supported */
 
@@ -51,7 +52,7 @@
 
 #define CTL_KERN_OPENFILES  1           /* kernel openfiles */
 
-#define EINVAL         -1               /* */
+//#define EINVAL         -1               /* */
 
 struct sysctl_entry {
   struct sysctl_entry *prev;
diff --git a/sys/include/vmm/mmap.h b/sys/include/vmm/mmap.h
index 62747e7..580a0f7 100644
--- a/sys/include/vmm/mmap.h
+++ b/sys/include/vmm/mmap.h
@@ -34,7 +34,7 @@
 typedef __vm_size_t vm_size_t;      // vm_size_t
 // @formatter:on
 
-// XXX MrOlsen #define EINVAL                  22  // Invalid argument
+#define EINVAL                  22  // Invalid argument
 #define MAP_ALIGNED(n)          ((n) << MAP_ALIGNMENT_SHIFT)
 #define MAP_ALIGNMENT_SHIFT     24
 #define MAP_ALIGNMENT_MASK      MAP_ALIGNED(0xff)