diff --git a/src/gb/gb.c b/src/gb/gb.c
index ed3ce92c4..a0398c307 100644
--- a/src/gb/gb.c
+++ b/src/gb/gb.c
@@ -23,8 +23,8 @@ const uint32_t SGB_LR35902_FREQUENCY = 0x418B1E;
 
 const uint32_t GB_COMPONENT_MAGIC = 0x400000;
 
-const uint32_t DMG_2_BIOS_CHECKSUM = 0x59C8598E;
-const uint32_t CGB_BIOS_CHECKSUM = 0x41884E46;
+#define DMG_2_BIOS_CHECKSUM 0x59C8598E
+#define CGB_BIOS_CHECKSUM 0x41884E46
 
 mLOG_DEFINE_CATEGORY(GB, "GB");