diff --git a/boot.php b/boot.php
index 5258a9d63f..c8d667f589 100644
--- a/boot.php
+++ b/boot.php
@@ -191,7 +191,7 @@ function startup() {
 	set_time_limit(0);
 
 	// This has to be quite large to deal with embedded private photos
-	ini_set('pcre.backtrack_limit', 350000);
+	ini_set('pcre.backtrack_limit', 500000);
 
 
 	if (get_magic_quotes_gpc()) {