diff --git a/src/OpenRouter/OpenRouter.hpp b/src/OpenRouter/OpenRouter.hpp
index 4e0745f..e2f5479 100644
--- a/src/OpenRouter/OpenRouter.hpp
+++ b/src/OpenRouter/OpenRouter.hpp
@@ -1,6 +1,4 @@
-#ifndef OPENROUTER_HPP
-#define OPENROUTER_HPP
-
+#pragma once
 #include <iostream>
 #include <httplib.h>
 
@@ -16,5 +14,3 @@ public:
     ~OpenRouter();
     int serve(const std::string& ip, int port, int socket_flags = 0);
 };
-
-#endif // OPENROUTER_HPP
diff --git a/src/auth/auth.hpp b/src/auth/auth.hpp
index dbc520b..7ba1da4 100644
--- a/src/auth/auth.hpp
+++ b/src/auth/auth.hpp
@@ -1,8 +1,4 @@
-#ifndef AUTH_HPP
-#define AUTH_HPP
-
+#pragma once
 #include <iostream>
 
 bool authenticate(const std::string &token);
-
-#endif // AUTH_HPP
\ No newline at end of file
diff --git a/src/helpers.hpp b/src/helpers.hpp
index b676831..fe85b1c 100644
--- a/src/helpers.hpp
+++ b/src/helpers.hpp
@@ -1,6 +1,4 @@
-#ifndef HELPERS_HPP
-#define HELPERS_HPP
-
+#pragma once
 #include <httplib.h>
 #include <json.hpp>
 
@@ -13,5 +11,3 @@ static bool check_body(const httplib::Request& request)
         return false;
     return true;
 }
-
-#endif // HELPERS_HPP
diff --git a/src/libs/ConfigManager.hpp b/src/libs/ConfigManager.hpp
index 087d55b..bef00aa 100644
--- a/src/libs/ConfigManager.hpp
+++ b/src/libs/ConfigManager.hpp
@@ -1,6 +1,4 @@
-#ifndef CONFIG_MANAGER_HPP
-#define CONFIG_MANAGER_HPP
-
+#pragma once
 #include <iostream>
 #include <fstream>
 #include <string>
@@ -132,5 +130,3 @@ public:
         return out << manager.config;
     }
 };
-
-#endif // CONFIG_MANAGER_HPP
diff --git a/src/libs/QR-Code-generator/qrtosvg.hpp b/src/libs/QR-Code-generator/qrtosvg.hpp
index 6924624..a6a443c 100644
--- a/src/libs/QR-Code-generator/qrtosvg.hpp
+++ b/src/libs/QR-Code-generator/qrtosvg.hpp
@@ -1,9 +1,6 @@
-#ifndef QRTOSVG_HPP
-#define QRTOSVG_HPP
+#pragma once
 
 #include <string>
 #include "qrcodegen.hpp"
 
 std::string toSvgString(const qrcodegen::QrCode& qr, int border);
-
-#endif // RTOSVG_HPP
diff --git a/src/security/cors.hpp b/src/security/cors.hpp
index 928fb5f..d64754d 100755
--- a/src/security/cors.hpp
+++ b/src/security/cors.hpp
@@ -1,6 +1,4 @@
-#ifndef CORS_HPP
-#define CORS_HPP
-
+#pragma once
 #include <httplib.h>
 
 #ifdef CORS_ENABLE
@@ -14,6 +12,4 @@ namespace api
     }
 }
 
-#endif // CORS_ENABLE
-
 #endif // CORS_HPP
diff --git a/src/system/reboot/reboot.hpp b/src/system/reboot/reboot.hpp
index 1d18007..4a75856 100644
--- a/src/system/reboot/reboot.hpp
+++ b/src/system/reboot/reboot.hpp
@@ -1,5 +1,4 @@
-#ifndef REBOOT_HPP
-#define REBOOT_HPP
+#pragma once
 
 #include <httplib.h>
 
@@ -10,5 +9,3 @@ namespace api
         void reboot(const httplib::Request& request, httplib::Response& response);
     }
 }
-
-#endif // REBOOT_HPP
diff --git a/src/system/syslog/syslog.hpp b/src/system/syslog/syslog.hpp
index 8bce7c9..f899097 100644
--- a/src/system/syslog/syslog.hpp
+++ b/src/system/syslog/syslog.hpp
@@ -1,5 +1,4 @@
-#ifndef SYSLOG_HPP
-#define SYSLOG_HPP
+#pragma once
 
 #include <httplib.h>
 
@@ -10,5 +9,3 @@ namespace api
         void get_syslog(const httplib::Request& request, httplib::Response& response);
     }
 }
-
-#endif // SYSLOG_HPP
diff --git a/src/system/system.hpp b/src/system/system.hpp
index ea3b7f9..9350088 100644
--- a/src/system/system.hpp
+++ b/src/system/system.hpp
@@ -1,10 +1,7 @@
-#ifndef SYSTEM_HPP
-#define SYSTEM_HPP
+#pragma once
 
 #ifdef __linux__
 #include <system/uptime/uptime.hpp>
 #endif // __linux__
 #include <system/syslog/syslog.hpp>
 #include <system/reboot/reboot.hpp>
-
-#endif // SYSTEM_HPP
diff --git a/src/system/uptime/uptime.hpp b/src/system/uptime/uptime.hpp
index e2dc676..9823c0e 100644
--- a/src/system/uptime/uptime.hpp
+++ b/src/system/uptime/uptime.hpp
@@ -1,5 +1,4 @@
-#ifndef UPTIME_HPP
-#define UPTIME_HPP
+#pragma once
 
 #include <httplib.h>
 
@@ -10,5 +9,3 @@ namespace api
         void get_uptime(const httplib::Request& request, httplib::Response& response);
     }
 }
-
-#endif // UPTIME_HPP
diff --git a/src/types.hpp b/src/types.hpp
index 0087a09..5831cb5 100644
--- a/src/types.hpp
+++ b/src/types.hpp
@@ -1,5 +1,4 @@
-#ifndef TYPES_H
-#define TYPES_H
+#pragma once
 
 #define ACCESS_REQUIRED_STRING R"({"required":"[token]"})"
 
@@ -8,5 +7,3 @@
 #define JSON_TYPE "application/json"
 #define PLAIN_TEXT_TYPE "text/plain"
 #define SVG_TYPE "image/svg+xml"
-
-#endif // TYPES_H