diff --git a/Lib/opcode.py b/Lib/opcode.py
index c2d7a59..cf8d909 100644
--- a/Lib/opcode.py
+++ b/Lib/opcode.py
@@ -137,12 +137,13 @@
 name_op('LOAD_NAME', 101)       # Index in name list
 def_op('BUILD_TUPLE', 102)      # Number of tuple items
 def_op('BUILD_LIST', 103)       # Number of list items
-def_op('BUILD_MAP', 104)        # Always zero for now
-name_op('LOAD_ATTR', 105)       # Index in name list
-def_op('COMPARE_OP', 106)       # Comparison operator
-hascompare.append(106)
-name_op('IMPORT_NAME', 107)     # Index in name list
-name_op('IMPORT_FROM', 108)     # Index in name list
+def_op('BUILD_SET', 104)        # Number of set items
+def_op('BUILD_MAP', 105)        # Always zero for now
+name_op('LOAD_ATTR', 106)       # Index in name list
+def_op('COMPARE_OP', 107)       # Comparison operator
+hascompare.append(107)
+name_op('IMPORT_NAME', 108)     # Index in name list
+name_op('IMPORT_FROM', 109)     # Index in name list
 
 jrel_op('JUMP_FORWARD', 110)    # Number of bytes to skip
 jrel_op('JUMP_IF_FALSE', 111)   # ""