diff --git a/CHANGES b/CHANGES
index b080e881f..00bc6e51f 100644
--- a/CHANGES
+++ b/CHANGES
@@ -6,6 +6,7 @@ Bugfixes:
  - Qt: Reenable double buffering, as disabling it broke some Windows configs
  - GBA Video: Start on the scanline BIOS finishes on if no BIOS is loaded
  - GBA: Deinit savegame when unloading a ROM
+ - GBA: Fix BIOS check on big endian
 Misc:
  - Qt: Window size command line options are now supported
  - Qt: Increase usability of key mapper
diff --git a/src/gba/gba.c b/src/gba/gba.c
index 25dccec13..6760efce4 100644
--- a/src/gba/gba.c
+++ b/src/gba/gba.c
@@ -688,7 +688,9 @@ bool GBAIsBIOS(struct VFile* vf) {
 	}
 	int i;
 	for (i = 0; i < 7; ++i) {
-		if ((interruptTable[i] & 0xFFFF0000) != 0xEA000000) {
+		uint32_t interrupt;
+		LOAD_32(interrupt, i * sizeof(uint32_t), interruptTable);
+		if ((interrupt & 0xFFFF0000) != 0xEA000000) {
 			return false;
 		}
 	}