diff --git a/src/fmt/doc.go b/src/fmt/doc.go
index 375cdb4266d..f3f2023dc21 100644
--- a/src/fmt/doc.go
+++ b/src/fmt/doc.go
@@ -45,6 +45,8 @@
 		%q	a double-quoted string safely escaped with Go syntax
 		%x	base 16, lower-case, two characters per byte
 		%X	base 16, upper-case, two characters per byte
+	Slice:
+		%p	address of 0th element in base 16 notation, with leading 0x
 	Pointer:
 		%p	base 16 notation, with leading 0x
 		The %b, %d, %o, %x and %X verbs also work with pointers,