diff --git a/Makefile b/Makefile
index 9b829f3..6102eab 100644
--- a/Makefile
+++ b/Makefile
@@ -647,7 +647,7 @@ $(SOUND_BIN_DIR)/sequences.bin.c: $(SOUND_BIN_DIR)/sequences.bin
 	echo "};" >> $@
 
 $(SOUND_BIN_DIR)/bank_sets.c: $(SOUND_BIN_DIR)/bank_sets
-	echo "unsigned char gBankSetsData[] = {" > $@
+	echo "unsigned char gBankSetsData[0x100] = {" > $@
 	hexdump -v -e '1/1 "0x%X,"' $< >> $@
 	echo "};" >> $@