3 files changed, 6 insertions, 3 deletions
diff --git a/bootp.h b/bootp.h
index 787389e..71ad7d6 100644
--- a/bootp.h
+++ b/bootp.h
@@ -1,6 +1,7 @@
 /* bootp/dhcp defines */
+
 #ifndef SLIRP_BOOTP_H
-#define SLIRP_BOOTP_H 1
+#define SLIRP_BOOTP_H
 
 #define BOOTP_SERVER 67
 #define BOOTP_CLIENT 68
diff --git a/main.h b/main.h
index 939b4c6..d825fb5 100644
--- a/main.h
+++ b/main.h
@@ -4,8 +4,9 @@
  * Please read the file COPYRIGHT for the
  * terms and conditions of the copyright.
  */
+
 #ifndef SLIRP_MAIN_H
-#define SLIRP_MAIN_H 1
+#define SLIRP_MAIN_H
 
 #ifdef HAVE_SYS_SELECT_H
 #include <sys/select.h>
diff --git a/tftp.h b/tftp.h
index 8eff334..9d8cecb 100644
--- a/tftp.h
+++ b/tftp.h
@@ -1,6 +1,7 @@
 /* tftp defines */
+
 #ifndef SLIRP_TFTP_H
-#define SLIRP_TFTP_H 1
+#define SLIRP_TFTP_H
 
 #define TFTP_SESSIONS_MAX 20