diff --git a/source/core/system/director.cpp b/source/core/system/director.cpp
index 66fc844..8998c84 100644
--- a/source/core/system/director.cpp
+++ b/source/core/system/director.cpp
@@ -475,13 +475,13 @@ void Director::checkProgramArguments(int argc, const char *argv[]) {
 void Director::createSystemFolder(const std::string &folder) {
 #ifdef __EMSCRIPTEN__
     // En Emscripten usamos una carpeta en MEMFS (no persistente)
-    systemFolder = "/config/" + folder;
+    system_folder_ = "/config/" + folder;
 #elif _WIN32
-    systemFolder = std::string(getenv("APPDATA")) + "/" + folder;
+    system_folder_ = std::string(getenv("APPDATA")) + "/" + folder;
 #elif __APPLE__
     struct passwd *pw = getpwuid(getuid());
     const char *homedir = pw->pw_dir;
-    systemFolder = std::string(homedir) + "/Library/Application Support" + "/" + folder;
+    system_folder_ = std::string(homedir) + "/Library/Application Support" + "/" + folder;
 #elif __linux__
     struct passwd *pw = getpwuid(getuid());
     const char *homedir = pw->pw_dir;
@@ -506,7 +506,7 @@ void Director::createSystemFolder(const std::string &folder) {
     if (stat(system_folder_.c_str(), &st) == -1) {
         errno = 0;
 #ifdef _WIN32
-        int ret = mkdir(systemFolder.c_str());
+        int ret = mkdir(system_folder_.c_str());
 #else
         int ret = mkdir(system_folder_.c_str(), S_IRWXU);
 #endif