diff --git a/docs/programmers.sgml b/docs/programmers.sgml
index c8bc49e8..32d281c6 100644
--- a/docs/programmers.sgml
+++ b/docs/programmers.sgml
@@ -1513,7 +1513,7 @@ $smarty = new Smarty;
 
 $smarty->caching = 2; // lifetime is per cache
 
-// set the cache_lifetime for index.tpl to 15 minutes
+// set the cache_lifetime for index.tpl to 5 minutes
 $smarty->cache_lifetime = 300;
 $smarty->display('index.tpl');