diff --git a/doc/src/sgml/arch-dev.sgml b/doc/src/sgml/arch-dev.sgml
index f4c0df8014..761ce37d36 100644
--- a/doc/src/sgml/arch-dev.sgml
+++ b/doc/src/sgml/arch-dev.sgml
@@ -557,7 +557,7 @@
A simple INSERT ... VALUES command creates a
trivial plan tree consisting of a single Result
node, which computes just one result row, feeding that up
- toModifyTable to perform the insertion.
+ to ModifyTable to perform the insertion.