diff --git a/doc/src/sgml/xfunc.sgml b/doc/src/sgml/xfunc.sgml
index 1840c86a995..a1f177cd964 100644
--- a/doc/src/sgml/xfunc.sgml
+++ b/doc/src/sgml/xfunc.sgml
@@ -2055,7 +2055,7 @@ memcpy(destination->data, buffer, 40);
timestamp
- Timestamp*
+ Timestamp
datatype/timestamp.h