diff --git a/doc/src/sgml/intarray.sgml b/doc/src/sgml/intarray.sgml
index 36155060baa..c4be4145670 100644
--- a/doc/src/sgml/intarray.sgml
+++ b/doc/src/sgml/intarray.sgml
@@ -281,7 +281,7 @@
    determines the maximum number of ranges in
    one index key.  The default value of <literal>numranges</literal> is 100.
    Valid values are between 1 and 253.  Using larger arrays as GiST index
-   keys leads to a more precise search (scaning a smaller fraction of the index and
+   keys leads to a more precise search (scanning a smaller fraction of the index and
    fewer heap pages), at the cost of a larger index.
   </para>