diff --git a/en_US.ISO8859-1/books/porters-handbook/book.sgml b/en_US.ISO8859-1/books/porters-handbook/book.sgml
index 0b2cf759d4..76b10f6c09 100644
--- a/en_US.ISO8859-1/books/porters-handbook/book.sgml
+++ b/en_US.ISO8859-1/books/porters-handbook/book.sgml
@@ -3929,7 +3929,7 @@ PLIST_SUB=      OCTAVE_VERSION=${OCTAVE_VERSION}</programlisting>
       <title>Dos and Don'ts</title>
 
       <para>Here is a list of common dos and don'ts that you encounter during
-        the porting process.You should check your own port against this list,
+        the porting process.  You should check your own port against this list,
         but you can also check ports in the PR database that others have
         submitted.  Submit any comments on ports you check as described in
         <ulink url="../../articles/contributing/contrib-how.html#CONTRIB-GENERAL">Bug Reports and General