diff --git a/mods/readme.txt b/mods/readme.txt
new file mode 100644
index 0000000000..9e79f843fe
--- /dev/null
+++ b/mods/readme.txt
@@ -0,0 +1,5 @@
+Site speed can be improved when the following indexes are set. They cannot be set through the update script because on large sites they will block the site for several minutes.
+
+CREATE INDEX `uid_commented` ON `item` (`uid`, `commented`);
+CREATE INDEX `uid_created` ON `item` (`uid`, `created`);
+CREATE INDEX `uid_unseen` ON `item` (`uid`, `unseen`);
diff --git a/update.php b/update.php
index 2d80ee369d..f98fb3ae71 100644
--- a/update.php
+++ b/update.php
@@ -1,6 +1,6 @@
 <?php
 
-define( 'UPDATE_VERSION' , 1154 );
+define( 'UPDATE_VERSION' , 1153 );
 
 /**
  *
@@ -1336,16 +1336,3 @@ function update_1152() {
 		return UPDATE_FAILED;
 	return UPDATE_SUCCESS;
 }
-
-function update_1153() {
-	$r = q("CREATE INDEX `uid_commented` ON `item` (`uid`, `commented`)");
-	if(! $r)
-		return UPDATE_FAILED;
-	$r = q("CREATE INDEX `uid_created` ON `item` (`uid`, `created`)");
-	if(! $r)
-		return UPDATE_FAILED;
-	$r = q("CREATE INDEX `uid_unseen` ON `item` (`uid`, `unseen`)");
-	if(! $r)
-		return UPDATE_FAILED;
-	return UPDATE_SUCCESS;
-}