diff --git a/Lib/opcode.py b/Lib/opcode.py
index 50e10ee6127..5fd9c218c57 100644
--- a/Lib/opcode.py
+++ b/Lib/opcode.py
@@ -101,7 +101,7 @@ def jabs_op(name, op):
 
 def_op('RETURN_VALUE', 83)
 def_op('IMPORT_STAR', 84)
-def_op('MAKE_BYTES', 85)
+
 def_op('YIELD_VALUE', 86)
 def_op('POP_BLOCK', 87)
 def_op('END_FINALLY', 88)