diff --git a/lib/libefivar/efivar-dp-format.c b/lib/libefivar/efivar-dp-format.c
index 3fa2833a7e7a..f2dcf1b91c01 100644
--- a/lib/libefivar/efivar-dp-format.c
+++ b/lib/libefivar/efivar-dp-format.c
@@ -28,7 +28,6 @@
  * this file is taken from EDK2 and rototilled.
  */
 
-#include <sys/cdefs.h>
 #include <efivar.h>
 #include <stdio.h>
 #include <string.h>
diff --git a/lib/libefivar/efivar-dp-parse.c b/lib/libefivar/efivar-dp-parse.c
index 3382666730c4..51c134692f1e 100644
--- a/lib/libefivar/efivar-dp-parse.c
+++ b/lib/libefivar/efivar-dp-parse.c
@@ -28,7 +28,6 @@
  * this file is taken from EDK2 and rototilled.
  */
 
-#include <sys/cdefs.h>
 #include <ctype.h>
 #include <efivar.h>
 #include <stdio.h>
diff --git a/lib/libefivar/efivar.c b/lib/libefivar/efivar.c
index a7cf13055bfe..c91bf5ea71bb 100644
--- a/lib/libefivar/efivar.c
+++ b/lib/libefivar/efivar.c
@@ -23,7 +23,6 @@
  * SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
 #include <efivar.h>
 #include <sys/efiio.h>
 #include <sys/param.h>
diff --git a/lib/libefivar/uefi-dputil.c b/lib/libefivar/uefi-dputil.c
index 7969054e2ce2..6e8f3aeca2ce 100644
--- a/lib/libefivar/uefi-dputil.c
+++ b/lib/libefivar/uefi-dputil.c
@@ -28,7 +28,6 @@
  * this file is taken from EDK2 and rototilled.
  */
 
-#include <sys/cdefs.h>
 #include <efivar.h>
 #include <limits.h>
 #include <stdio.h>