diff --git a/include/Common.h b/include/Common.h
index e401d2a..4166c1c 100644
--- a/include/Common.h
+++ b/include/Common.h
@@ -57,7 +57,7 @@ public:
     static std::string ServerVersion() { return "2.3.0"; }
     static std::string ClientVersion() { return "2.0"; }
     static std::string PPS() { return mPPS; }
-    static void SetPPS(std::string NewPPS) { mPPS = NewPPS; }
+    static void SetPPS(const std::string& NewPPS) { mPPS = NewPPS; }
 
     static inline TSettings Settings {};
 
@@ -78,7 +78,7 @@ private:
 };
 
 std::string ThreadName(bool DebugModeOverride = false);
-void RegisterThread(const std::string str);
+void RegisterThread(const std::string& str);
 #define RegisterThreadAuto() RegisterThread(__func__)
 
 #define KB 1024
diff --git a/src/Common.cpp b/src/Common.cpp
index 630b21b..3257eea 100644
--- a/src/Common.cpp
+++ b/src/Common.cpp
@@ -141,7 +141,7 @@ std::string ThreadName(bool DebugModeOverride) {
     return "";
 }
 
-void RegisterThread(const std::string str) {
+void RegisterThread(const std::string& str) {
     auto Lock = std::unique_lock(ThreadNameMapMutex);
     threadNameMap[std::this_thread::get_id()] = str;
 }
diff --git a/src/TLuaEngine.cpp b/src/TLuaEngine.cpp
index 29b78ef..0ec1b07 100644
--- a/src/TLuaEngine.cpp
+++ b/src/TLuaEngine.cpp
@@ -75,7 +75,7 @@ void TLuaEngine::FolderList(const std::string& Path, bool HotSwap) {
 }
 
 void TLuaEngine::RegisterFiles(const fs::path& Path, bool HotSwap) {
-    std::string Name = Path.filename();
+    std::string Name = Path.filename().string();
     if (!HotSwap)
         info(("Loading plugin : ") + Name);
     std::vector<fs::path> Entries;