diff --git a/usr.bin/perror/perror.c b/usr.bin/perror/perror.c
index bdf19e2423c..caf0972e9c5 100644
--- a/usr.bin/perror/perror.c
+++ b/usr.bin/perror/perror.c
@@ -28,12 +28,13 @@
  */
 
 #include <sys/cdefs.h>
+#include <sys/errno.h>
+
+#include <err.h>
+#include <locale.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <err.h>
-#include <locale.h>
-#include <sys/errno.h>
 
 #include <capsicum_helpers.h>