diff --git a/src/CNLoginServer.hpp b/src/CNLoginServer.hpp
index e694588..a2fae91 100644
--- a/src/CNLoginServer.hpp
+++ b/src/CNLoginServer.hpp
@@ -1,5 +1,4 @@
-#ifndef _CNLS_HPP
-#define _CNLS_HPP
+#pragma once
 
 #include "CNProtocol.hpp"
 #include "Defines.hpp"
@@ -24,5 +23,3 @@ public:
     void newConnection(CNSocket* cns);
     void killConnection(CNSocket* cns);
 };
-
-#endif
diff --git a/src/CNProtocol.hpp b/src/CNProtocol.hpp
index 3913a75..07620b7 100644
--- a/src/CNProtocol.hpp
+++ b/src/CNProtocol.hpp
@@ -1,5 +1,4 @@
-#ifndef _CNP_HPP
-#define _CNP_HPP
+#pragma once
 
 #define MAX_PACKETSIZE 8192
 #define DEBUGLOG(x) x 
@@ -152,5 +151,3 @@ public:
     virtual void killConnection(CNSocket* cns);
     virtual void onTimer(); // called every 2 seconds
 };
-
-#endif
\ No newline at end of file
diff --git a/src/CNShardServer.hpp b/src/CNShardServer.hpp
index e9d9b56..4d5ca31 100644
--- a/src/CNShardServer.hpp
+++ b/src/CNShardServer.hpp
@@ -1,5 +1,4 @@
-#ifndef _CNSS_HPP
-#define _CNSS_HPP
+#pragma once
 
 #include "CNProtocol.hpp"
 #include "Defines.hpp"
@@ -21,5 +20,3 @@ public:
     void killConnection(CNSocket* cns);
     void onTimer();
 };
-
-#endif
diff --git a/src/CNShared.hpp b/src/CNShared.hpp
index 5e0d240..f852191 100644
--- a/src/CNShared.hpp
+++ b/src/CNShared.hpp
@@ -3,8 +3,7 @@
         There's some data shared between the Login Server and the Shard Server. Of course all of this needs to be thread-safe. No mucking about on this one!
 */
 
-#ifndef _CNSD_HPP
-#define _CNSD_HPP
+#pragma once
 
 #include <map>
 #include <string>
@@ -19,5 +18,3 @@ namespace CNSharedData {
     Player getPlayer(int64_t sk);
     void erasePlayer(int64_t sk);
 }
-
-#endif
\ No newline at end of file
diff --git a/src/CNStructs.hpp b/src/CNStructs.hpp
index 0b7de0b..584463a 100644
--- a/src/CNStructs.hpp
+++ b/src/CNStructs.hpp
@@ -2,8 +2,7 @@
     CNStructs.hpp - defines some basic structs & useful methods for packets used by FusionFall based on the version defined
 */
 
-#ifndef _CNS_HPP
-#define _CNS_HPP
+#pragma once
 
 #ifdef _MSC_VER
     // codecvt_* is deprecated in C++17 and MSVC will throw an annoying warning because of that.
@@ -45,5 +44,3 @@ uint64_t getTime();
 #else
     #error Invalid PROTOCOL_VERSION
 #endif
-
-#endif
diff --git a/src/ChatManager.hpp b/src/ChatManager.hpp
index 241d47b..cfc827b 100644
--- a/src/ChatManager.hpp
+++ b/src/ChatManager.hpp
@@ -1,5 +1,4 @@
-#ifndef _CM_HPP
-#define _CM_HPP
+#pragma once
 
 #include "CNShardServer.hpp"
 
@@ -10,5 +9,3 @@ namespace ChatManager {
     void emoteHandler(CNSocket* sock, CNPacketData* data);
     void menuChatHandler(CNSocket* sock, CNPacketData* data);
 }
-
-#endif
diff --git a/src/ItemManager.hpp b/src/ItemManager.hpp
index d6fc634..f87576b 100644
--- a/src/ItemManager.hpp
+++ b/src/ItemManager.hpp
@@ -1,5 +1,4 @@
-#ifndef _IM_HPP
-#define _IM_HPP
+#pragma once
 
 #include "CNShardServer.hpp"
 
@@ -9,5 +8,3 @@ namespace ItemManager {
     void itemDeleteHandler(CNSocket* sock, CNPacketData* data);   
     void itemGMGiveHandler(CNSocket* sock, CNPacketData* data);
 }
-
-#endif
\ No newline at end of file
diff --git a/src/NPCManager.hpp b/src/NPCManager.hpp
index 8c3e369..b1897b1 100644
--- a/src/NPCManager.hpp
+++ b/src/NPCManager.hpp
@@ -1,5 +1,4 @@
-#ifndef _NPCMANAGER_HPP
-#define _NPCMANAGER_HPP
+#pragma once
 
 #include "CNProtocol.hpp"
 #include "PlayerManager.hpp"
@@ -20,5 +19,3 @@ namespace NPCManager {
     void npcWarpManager(CNSocket* sock, CNPacketData* data);
 
 }
-
-#endif
diff --git a/src/NanoManager.hpp b/src/NanoManager.hpp
index d1f2646..0a28956 100644
--- a/src/NanoManager.hpp
+++ b/src/NanoManager.hpp
@@ -1,5 +1,4 @@
-#ifndef _NM_HPP
-#define _NM_HPP
+#pragma once
 
 #include "CNShardServer.hpp"
 
@@ -17,5 +16,3 @@ namespace NanoManager {
     void setNanoSkill(CNSocket* sock, int16_t nanoId, int16_t skillId);
     void resetNanoSkill(CNSocket* sock, int16_t nanoId);
 }
-
-#endif
\ No newline at end of file
diff --git a/src/PlayerManager.hpp b/src/PlayerManager.hpp
index 10fac5b..ae8fcdb 100644
--- a/src/PlayerManager.hpp
+++ b/src/PlayerManager.hpp
@@ -1,5 +1,4 @@
-#ifndef _PM_HPP
-#define _PM_HPP
+#pragma once
 
 #include "Player.hpp"
 #include "CNProtocol.hpp"
@@ -44,5 +43,3 @@ namespace PlayerManager {
     void heartbeatPlayer(CNSocket* sock, CNPacketData* data);
     void exitGame(CNSocket* sock, CNPacketData* data);
 }
-
-#endif
diff --git a/src/settings.hpp b/src/settings.hpp
index 6ab94aa..82c4c75 100644
--- a/src/settings.hpp
+++ b/src/settings.hpp
@@ -1,5 +1,4 @@
-#ifndef _SETT_HPP
-#define _SETT_HPP
+#pragma once
 
 namespace settings {
     extern bool VERBOSE;
@@ -17,5 +16,3 @@ namespace settings {
 
     void init();
 }
-
-#endif