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-rw-r--r--inc/html.php3
1 files changed, 1 insertions, 2 deletions
diff --git a/inc/html.php b/inc/html.php
index 7d533282e..e7d401594 100644
--- a/inc/html.php
+++ b/inc/html.php
@@ -1339,7 +1339,6 @@ function html_diff_navigation($pagelog, $type, $l_rev, $r_rev) {
$r_prev = $r_revs[$r_index + 1];
$r_next = $r_revs[$r_index - 1];
-
/*
* Left side:
*/
@@ -1367,7 +1366,7 @@ function html_diff_navigation($pagelog, $type, $l_rev, $r_rev) {
$form->addElement(form_makeButton('submit', 'diff', 'Go'));
$l_nav .= $form->getForm();
//move forward
- if($l_next < $r_rev) {
+ if($l_next && $l_next < $r_rev) {
$l_nav .= html_diff_navigationlink($type, 'diffnextrev', $l_next, $r_rev);
}