diff --git a/Cart_Reader/Cart_Reader.ino b/Cart_Reader/Cart_Reader.ino
index 1b16f34..20dafdb 100644
--- a/Cart_Reader/Cart_Reader.ino
+++ b/Cart_Reader/Cart_Reader.ino
@@ -257,6 +257,7 @@ void print_STR(byte string_number, boolean newline) {
 #define mode_5200 37
 #define mode_7800 38
 #define mode_VECTREX 39
+#define mode_ST 40
 
 // optimization-safe nop delay
 #define NOP __asm__ __volatile__("nop\n\t")
@@ -3592,6 +3593,11 @@ void loop() {
     svMenu();
   }
 #endif
+#ifdef enable_ST
+  else if (mode == mode_ST) {
+    stMenu();
+  }
+#endif
 #ifdef enable_NES
   else if (mode == mode_NES) {
     nesMenu();