diff --git a/lib/ipfw/expand_number.c b/lib/ipfw/expand_number.c
index 523fbb0d06..a91b2d6e10 100644
--- a/lib/ipfw/expand_number.c
+++ b/lib/ipfw/expand_number.c
@@ -25,7 +25,6 @@
  * SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
 __FBSDID("$FreeBSD: head/lib/libutil/expand_number.c 211343 2010-08-15 18:32:06Z des $");
 
 #include <sys/types.h>
diff --git a/lib/ipfw/humanize_number.c b/lib/ipfw/humanize_number.c
index 0b7382f143..dfe0bf8194 100644
--- a/lib/ipfw/humanize_number.c
+++ b/lib/ipfw/humanize_number.c
@@ -30,7 +30,6 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
 __FBSDID("$FreeBSD: head/lib/libutil/humanize_number.c 220582 2011-04-12 22:48:03Z delphij $");
 
 #include <sys/types.h>
diff --git a/lib/ipfw/missing.h b/lib/ipfw/missing.h
index b5b65b28ad..ddf23f4821 100644
--- a/lib/ipfw/missing.h
+++ b/lib/ipfw/missing.h
@@ -59,7 +59,6 @@ void panic(const char *fmt, ...);
 #include <stdlib.h>	// bsearch
 #ifdef NEED_KERNEL
 #define _KERNEL
-#include <sys/cdefs.h>
 #include <sys/param.h>
 
 #define __user	// not defined here ?