1 files changed, 1 insertions, 0 deletions
diff --git a/blastem.h b/blastem.h
index 43ca592..958f8b0 100644
--- a/blastem.h
+++ b/blastem.h
@@ -24,6 +24,7 @@ typedef struct {
 	psg_context    *psg;
 	uint16_t       *work_ram;
 	uint8_t        *zram;
+	void           *extra;
 	uint8_t        *save_storage;
 	eeprom_map     *eeprom_map;
 	uint32_t       num_eeprom;