diff --git a/Lib/dis.py b/Lib/dis.py
index af37cdf..3540b47 100644
--- a/Lib/dis.py
+++ b/Lib/dis.py
@@ -162,6 +162,15 @@
 _Instruction = collections.namedtuple("_Instruction",
      "opname opcode arg argval argrepr offset starts_line is_jump_target")
 
+_Instruction.opname.__doc__ = "Human readable name for operation"
+_Instruction.opcode.__doc__ = "Numeric code for operation"
+_Instruction.arg.__doc__ = "Numeric argument to operation (if any), otherwise None"
+_Instruction.argval.__doc__ = "Resolved arg value (if known), otherwise same as arg"
+_Instruction.argrepr.__doc__ = "Human readable description of operation argument"
+_Instruction.offset.__doc__ = "Start index of operation within bytecode sequence"
+_Instruction.starts_line.__doc__ = "Line started by this opcode (if any), otherwise None"
+_Instruction.is_jump_target.__doc__ = "True if other code jumps to here, otherwise False"
+
 class Instruction(_Instruction):
     """Details for a bytecode operation