diff --git a/Core/gb.h b/Core/gb.h
index 3fec460..96a7d0f 100644
--- a/Core/gb.h
+++ b/Core/gb.h
@@ -36,6 +36,8 @@
 #define GB_MODEL_PAL_BIT 0x40
 #define GB_MODEL_NO_SFC_BIT 0x80
 
+#define GB_REWIND_FRAMES_PER_KEY 255
+
 #if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
 #define GB_BIG_ENDIAN
 #elif __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
@@ -728,7 +730,6 @@ struct GB_gameboy_internal_s {
         const char *undo_label;
 
         /* Rewind */
-#define GB_REWIND_FRAMES_PER_KEY 255
         size_t rewind_buffer_length;
         struct {
             uint8_t *key_state;