diff --git a/Engine/source/platform/platformFileIO.cpp b/Engine/source/platform/platformFileIO.cpp
index 788ed4f62..58123dbb1 100644
--- a/Engine/source/platform/platformFileIO.cpp
+++ b/Engine/source/platform/platformFileIO.cpp
@@ -620,3 +620,8 @@ DefineEngineFunction( getUserHomeDirectory, const char *, (), , "getUserHomeDire
 {
    return Platform::getUserHomeDirectory();
 }
+
+DefineEngineFunction(setMainDotCsDir, void, (const char* path), , "setMainDotCsDir()")
+{
+   Platform::setMainDotCsDir(StringTable->insert(path));
+}
\ No newline at end of file