diff --git a/src/documentation/xdocs/hpsf/how-to.xml b/src/documentation/xdocs/hpsf/how-to.xml
index c640f1944..a95d67472 100644
--- a/src/documentation/xdocs/hpsf/how-to.xml
+++ b/src/documentation/xdocs/hpsf/how-to.xml
@@ -603,7 +603,7 @@ No property set stream: "/WordDocument"
 No property set stream: "/CompObj"
 No property set stream: "/1Table"</source>
 
-     <p>There are some interestion items to note:</p>
+     <p>There are some interesting items to note:</p>
 
      <ul>
       <li>The first property set (summary information) consists of a single