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diff --git a/cps_and_continuation_operators.mdwn b/cps_and_continuation_operators.mdwn
index 0d4eb1df..1ddcf37d 100644
--- a/cps_and_continuation_operators.mdwn
+++ b/cps_and_continuation_operators.mdwn
@@ -397,6 +397,10 @@ Here is [the answer](/hints/cps_hint_4), but again, first try to figure it out f
 Delimited control operators
 ===========================
 
+Here again is the CPS for `callcc`:
+
+ 	[callcc (\k. body)] = \outk. (\k. [body] outk) (\v localk. outk v)
+
 `callcc` is what's known as an *undelimited control operator*. That is, the continuations `outk` that get bound to our `k`s behave as though they include all the code from the `call/cc ...` out to *and including* the end of the program.
 
 Often times it's more useful to use a different pattern, where we instead capture only the code from the invocation of our control operator out to a certain boundary, not including the end of the program. These are called *delimited control operators*. A variety of the latter have been formulated.