diff --git a/doc/go1.5.html b/doc/go1.5.html
index 4e173d130a..12a8cca17a 100644
--- a/doc/go1.5.html
+++ b/doc/go1.5.html
@@ -598,6 +598,12 @@ invalid when the current working directory changes.
On Windows, cgo now uses external linking by default.
+
+When a C struct ends with a zero-sized field, but the struct itself is
+not zero-sized, Go code can no longer refer to the zero-sized field.
+Any such references will have to be rewritten.
+
+