diff --git a/include/common.h b/include/common.h
index a23ae2b..89562ee 100644
--- a/include/common.h
+++ b/include/common.h
@@ -1,5 +1,5 @@
-#ifndef _COMMON_H_
-#define _COMMON_H_
+#ifndef COMMON_H_
+#define COMMON_H_
 
 #define VERSION "1.0.0-beta"
 
diff --git a/include/load.h b/include/load.h
index 3800b67..9271e48 100644
--- a/include/load.h
+++ b/include/load.h
@@ -1,5 +1,5 @@
-#ifndef _LOAD_H_
-#define _LOAD_H_
+#ifndef LOAD_H_
+#define LOAD_H_
 
 typedef struct {
     int is_udp_proxy;
diff --git a/include/sip003.h b/include/sip003.h
index 21eadfc..d91b98c 100644
--- a/include/sip003.h
+++ b/include/sip003.h
@@ -1,5 +1,5 @@
-#ifndef _SIP003_H_
-#define _SIP003_H_
+#ifndef SIP003_H_
+#define SIP003_H_
 
 #include "load.h"
 
diff --git a/include/utils/dns.h b/include/utils/dns.h
index 8fe0c47..321a032 100644
--- a/include/utils/dns.h
+++ b/include/utils/dns.h
@@ -1,5 +1,5 @@
-#ifndef _DNS_H_
-#define _DNS_H_
+#ifndef DNS_H_
+#define DNS_H_
 
 char* dns_resolve(const char *domain);
 
diff --git a/include/utils/logger.h b/include/utils/logger.h
index 48ecc04..47f3b6d 100644
--- a/include/utils/logger.h
+++ b/include/utils/logger.h
@@ -1,5 +1,5 @@
-#ifndef _LOG_H
-#define _LOG_H
+#ifndef LOG_H
+#define LOG_H
 
 enum {
     LOG_DEBUG,
diff --git a/include/utils/network.h b/include/utils/network.h
index 0f542d6..e82cdd7 100644
--- a/include/utils/network.h
+++ b/include/utils/network.h
@@ -1,5 +1,5 @@
-#ifndef _NETWORK_H_
-#define _NETWORK_H_
+#ifndef NETWORK_H_
+#define NETWORK_H_
 
 extern int PROXY_EXIT;
 
diff --git a/include/utils/process.h b/include/utils/process.h
index 11baedf..ceea269 100644
--- a/include/utils/process.h
+++ b/include/utils/process.h
@@ -1,5 +1,5 @@
-#ifndef _PROCESS_H_
-#define _PROCESS_H_
+#ifndef PROCESS_H_
+#define PROCESS_H_
 
 #include "sip003.h"