diff --git a/lang/bytecode.c b/lang/bytecode.c
index 69c76df..c47ce85 100644
--- a/lang/bytecode.c
+++ b/lang/bytecode.c
@@ -19,9 +19,9 @@
 	OP_END = 0x00,
 	OP_RATIO1 = 0x01,
 	OP_RET = 0x03,
-	OP_DROP_ONE = 0x02, // Unused old variant of OP_DROP
+	OP_UNUSED1 = 0x02, // Unused, use for next op
 	OP_CALL = 0x04,
-	OP_NONE = 0x05, // Formerly OP_NULL
+	OP_NONE = 0x05,
 	OP_GET = 0x06,
 	OP_SET = 0x07,
 	OP_DROP = 0x08,