diff --git a/src/gb/mbc/unlicensed.c b/src/gb/mbc/unlicensed.c
index 58725fa98..1577a15fa 100644
--- a/src/gb/mbc/unlicensed.c
+++ b/src/gb/mbc/unlicensed.c
@@ -227,7 +227,7 @@ void _GBNTOld2(struct GB* gb, uint16_t address, uint8_t value) {
 			mbcState->rumble = !!(value & 0x80);
 		}
 
-		if (mbcState->rumble) {
+		if (mbcState->rumble && memory->rumble) {
 			memory->rumble->setRumble(memory->rumble, !!(mbcState->swapped ? value & 0x08 : value & 0x02));
 		}
 		break;