diff --git a/Makefile b/Makefile
index 8025c2ba..db51d193 100644
--- a/Makefile
+++ b/Makefile
@@ -191,8 +191,10 @@ endif
 
 ifeq ($(USE_DEBUG),1)
   ULTRALIB := ultra_d
+  DEFINES += DEBUG=1
 else
   ULTRALIB := ultra_rom
+  DEFINES += _FINALROM=1 NDEBUG=1
 endif
 
 # HVQM - whether to use HVQM fmv library
diff --git a/src/game/main.c b/src/game/main.c
index 3d95e741..f205a556 100644
--- a/src/game/main.c
+++ b/src/game/main.c
@@ -319,11 +319,13 @@ void thread3_main(UNUSED void *arg) {
     crash_screen_init();
 #endif
 
+#ifdef DEBUG
     osSyncPrintf("Super Mario 64\n");
     osSyncPrintf("Built by: %s\n", __username__);
     osSyncPrintf("Date    : %s\n", __datetime__);
     osSyncPrintf("Compiler: %s\n", __compiler__);
     osSyncPrintf("Linker  : %s\n", __linker__);
+#endif
 
     create_thread(&gSoundThread, 4, thread4_sound, NULL, gThread4Stack + 0x2000, 20);
     osStartThread(&gSoundThread);