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-rw-r--r--tmk_core/protocol/arm_atsam/md_bootloader.h3
1 files changed, 1 insertions, 2 deletions
diff --git a/tmk_core/protocol/arm_atsam/md_bootloader.h b/tmk_core/protocol/arm_atsam/md_bootloader.h
index 956145c313..6b80ef4922 100644
--- a/tmk_core/protocol/arm_atsam/md_bootloader.h
+++ b/tmk_core/protocol/arm_atsam/md_bootloader.h
@@ -11,7 +11,7 @@ extern uint32_t _erom;
//WARNING: These are only for CTRL bootloader release "v2.18Jun 22 2018 17:28:08" for bootloader_jump support
extern uint32_t _eram;
#define BOOTLOADER_MAGIC 0x3B9ACA00
-#define MAGIC_ADDR (uint32_t *)(&_eram - 4)
+#define MAGIC_ADDR (uint32_t *)((intptr_t)(&_eram) - 4)
#endif
#ifdef MD_BOOTLOADER
@@ -22,4 +22,3 @@ extern uint32_t _eram;
#endif //MD_BOOTLOADER
#endif //_MD_BOOTLOADER_H_
-