diff --git a/include/Common.h b/include/Common.h
index 217d23c..879209e 100644
--- a/include/Common.h
+++ b/include/Common.h
@@ -131,6 +131,7 @@ private:
 };
 
 void SplitString(std::string const& str, const char delim, std::vector<std::string>& out);
+std::string LowerString(std::string str);
 
 std::string ThreadName(bool DebugModeOverride = false);
 void RegisterThread(const std::string& str);
diff --git a/src/Common.cpp b/src/Common.cpp
index d135569..1785b9e 100644
--- a/src/Common.cpp
+++ b/src/Common.cpp
@@ -384,6 +384,13 @@ void SplitString(const std::string& str, const char delim, std::vector<std::stri
         out.push_back(str.substr(start, end - start));
     }
 }
+
+std::string LowerString(std::string str) {
+    std::ranges::transform(str, str.begin(), ::tolower);
+    return str;
+}
+
+
 static constexpr size_t STARTING_MAX_DECOMPRESSION_BUFFER_SIZE = 15 * 1024 * 1024;
 static constexpr size_t MAX_DECOMPRESSION_BUFFER_SIZE = 30 * 1024 * 1024;
 
diff --git a/src/TPluginMonitor.cpp b/src/TPluginMonitor.cpp
index f16ec1e..049fd20 100644
--- a/src/TPluginMonitor.cpp
+++ b/src/TPluginMonitor.cpp
@@ -57,7 +57,7 @@ void TPluginMonitor::operator()() {
                     mFileTimes[Pair.first] = CurrentTime;
                     // grandparent of the path should be Resources/Server
                     if (fs::equivalent(fs::path(Pair.first).parent_path().parent_path(), mPath)) {
-                        if (fs::path(Pair.first).extension() == ".lua") {
+                        if (LowerString(fs::path(Pair.first).extension().string()) == ".lua") {
                             beammp_infof("File \"{}\" changed, reloading", Pair.first);
                             // is in root folder, so reload
                             std::ifstream FileStream(Pair.first, std::ios::in | std::ios::binary);