diff --git a/src/common/Cryptography/OpenSSLCrypto.cpp b/src/common/Cryptography/OpenSSLCrypto.cpp
index 1a69a0c0f..036a94c0e 100644
--- a/src/common/Cryptography/OpenSSLCrypto.cpp
+++ b/src/common/Cryptography/OpenSSLCrypto.cpp
@@ -16,6 +16,7 @@
  */
 
 #include "OpenSSLCrypto.h"
+#include "Errors.h"
 #include <openssl/crypto.h> // NOTE: this import is NEEDED (even though some IDEs report it as unused)
 
 #if defined(OPENSSL_VERSION_NUMBER) && OPENSSL_VERSION_NUMBER < 0x1010000fL
diff --git a/src/common/Threading/ProcessPriority.cpp b/src/common/Threading/ProcessPriority.cpp
index eb1401a18..93e689336 100644
--- a/src/common/Threading/ProcessPriority.cpp
+++ b/src/common/Threading/ProcessPriority.cpp
@@ -16,6 +16,7 @@
  */
 
 #include "ProcessPriority.h"
+#include "Log.h"
 
 #ifdef _WIN32 // Windows
 #include <Windows.h>
diff --git a/src/server/game/Movement/Waypoints/WaypointMgr.h b/src/server/game/Movement/Waypoints/WaypointMgr.h
index 0d81e14cf..a9df15129 100644
--- a/src/server/game/Movement/Waypoints/WaypointMgr.h
+++ b/src/server/game/Movement/Waypoints/WaypointMgr.h
@@ -19,6 +19,7 @@
 #define ACORE_WAYPOINTMANAGER_H
 
 #include "Common.h"
+#include <optional>
 #include <unordered_map>
 #include <vector>