diff --git a/src/boards/268.c b/src/boards/268.c
index 6bfba77..8e76a94 100644
--- a/src/boards/268.c
+++ b/src/boards/268.c
@@ -117,6 +117,7 @@ static void Mapper268_Power(void) {
 static void Mapper268_close(void) {
 	if (CHRRAM) FCEU_gfree(CHRRAM);
 	CHRRAM =NULL;
+	GenMMC3Close();
 }
 
 void Mapper268_Init(CartInfo *info) {