diff --git a/doc/go1.6.txt b/doc/go1.6.txt
index 4cba7f82c9..a586fbea61 100644
--- a/doc/go1.6.txt
+++ b/doc/go1.6.txt
@@ -7,6 +7,7 @@ cmd/go: add -msan option (https://golang.org/cl/16169)
 cmd/go: use shallow clones for new git checkouts (https://golang.org/cl/16360)
 cmd/compile: add -msan option (https://golang.org/cl/16160)
 cmd/link: add -msan option (https://golang.org/cl/16161)
+cmd/cgo: fix C.complexfloat and C.complexdouble and treat as separate types from complex64 and complex128 (https://golang.org/cl/17208)
 
 Ports: