diff --git a/Lib/opcode.py b/Lib/opcode.py
index 095ca42..c3457d0 100644
--- a/Lib/opcode.py
+++ b/Lib/opcode.py
@@ -85,6 +85,7 @@
 def_op('DELETE_SLICE+2', 52)
 def_op('DELETE_SLICE+3', 53)
 
+def_op('STORE_MAP', 54)
 def_op('INPLACE_ADD', 55)
 def_op('INPLACE_SUBTRACT', 56)
 def_op('INPLACE_MULTIPLY', 57)