diff --git a/en_US.ISO8859-1/books/porters-handbook/book.sgml b/en_US.ISO8859-1/books/porters-handbook/book.sgml
index b9e7bdfe26..36943b7e2a 100644
--- a/en_US.ISO8859-1/books/porters-handbook/book.sgml
+++ b/en_US.ISO8859-1/books/porters-handbook/book.sgml
@@ -690,7 +690,7 @@ lib/X11/oneko/mouse.xpm
 	    appended to the package name if non-zero.
 	    <makevar>PORTREVISION</makevar> is increased each time a
 	    change is made to the FreeBSD port which significantly
-	    affects the content or stucture of the derived
+	    affects the content or structure of the derived
 	    package.</para>
 
 	  <para>Examples of when PORTREVISION should be bumped:</para>