diff --git a/src/gb/gb.c b/src/gb/gb.c
index a49b641af..0da504c61 100644
--- a/src/gb/gb.c
+++ b/src/gb/gb.c
@@ -117,7 +117,6 @@ bool GBLoadROM(struct GB* gb, struct VFile* vf) {
 	gb->yankedRomSize = 0;
 	gb->memory.romSize = gb->pristineRomSize;
 	gb->romCrc32 = doCrc32(gb->memory.rom, gb->memory.romSize);
-	memset(&gb->memory.mbcState, 0, sizeof(gb->memory.mbcState));
 	GBMBCReset(gb);
 
 	if (gb->cpu) {
diff --git a/src/gb/mbc.c b/src/gb/mbc.c
index ffc4054e6..20ab20322 100644
--- a/src/gb/mbc.c
+++ b/src/gb/mbc.c
@@ -339,6 +339,10 @@ void GBMBCInit(struct GB* gb) {
 	}
 	gb->memory.mbcRead = NULL;
 	gb->memory.directSramAccess = true;
+	gb->memory.mbcReadBank0 = false;
+	gb->memory.mbcReadBank1 = false;
+	gb->memory.mbcReadHigh = false;
+	gb->memory.mbcWriteHigh = false;
 	gb->memory.cartBusDecay = 4;
 	switch (gb->memory.mbcType) {
 	case GB_MBC_NONE: