grammar

diff --git a/doc/Programming-Guide/prog-guide.sgml b/doc/Programming-Guide/prog-guide.sgml
index d23ea5a2b90ae354650b71ab194880b5c19ad069..3a90f3e69ac7d9d371cda3a10c64306630fe45cc 100644 (file)
--- a/doc/Programming-Guide/prog-guide.sgml
+++ b/doc/Programming-Guide/prog-guide.sgml
@@ -682,7 +682,7 @@ Squid consists of the following major components
 
        <P>
        Every cache object that is ``opened'' for reading or writing
-       will have an <em/storeIOState/ data structure associated with
+       will have a <em/storeIOState/ data structure associated with
        it.  Currently, this structure looks like:
 <verb>
         struct _storeIOState {