diff --git a/headers/compatibility/bsd/sys/param.h b/headers/compatibility/bsd/sys/param.h
index d76da9bd44..f0001fa155 100644
--- a/headers/compatibility/bsd/sys/param.h
+++ b/headers/compatibility/bsd/sys/param.h
@@ -34,6 +34,8 @@
 #	define MAXLOGNAME 32
 #endif
 
+#define NBBY 8
+
 
 #endif