diff --git a/src/gb/gb.c b/src/gb/gb.c
index 83b17b86b..0ef8c855f 100644
--- a/src/gb/gb.c
+++ b/src/gb/gb.c
@@ -77,6 +77,9 @@ bool GBLoadROM(struct GB* gb, struct VFile* vf, struct VFile* sav, const char* f
 	gb->romCrc32 = doCrc32(gb->memory.rom, gb->memory.romSize);
 	gb->sramVf = sav;
 	if (sav) {
+		if (sav->size(sav) < 0x8000) {
+			sav->truncate(sav, 0x8000);
+		}
 		gb->memory.sram = sav->map(sav, 0x8000, MAP_WRITE);
 	} else {
 		gb->memory.sram = anonymousMemoryMap(0x8000);