diff --git a/src/gba/gba.c b/src/gba/gba.c
index 713340971..e72e3605d 100644
--- a/src/gba/gba.c
+++ b/src/gba/gba.c
@@ -106,6 +106,7 @@ static void GBAInit(struct ARMCore* cpu, struct ARMComponent* component) {
 
 	gba->pristineRom = 0;
 	gba->pristineRomSize = 0;
+	gba->yankedRomSize = 0;
 }
 
 void GBAUnloadROM(struct GBA* gba) {