diff --git a/inc/lang/en/lang.php b/inc/lang/en/lang.php
index 131af82a11514c3e94a92e84f240a7747ad6fae8..f76ce09ec88e79c453ed4888d6833747f4aec5bf 100644
--- a/inc/lang/en/lang.php
+++ b/inc/lang/en/lang.php
@@ -196,7 +196,6 @@ $lang['diffnextrev']           = 'Next revision';
 $lang['difflastrev']           = 'Last revision';
 $lang['diffbothprevrev']       = 'Both sides previous revision';
 $lang['diffbothnextrev']       = 'Both sides next revision';
-$lang['overviewrevs']          = 'Overview of revisions';
 $lang['line']                  = 'Line';
 $lang['breadcrumb']            = 'Trace';
 $lang['youarehere']            = 'You are here';
diff --git a/inc/lang/nl/lang.php b/inc/lang/nl/lang.php
index 4a0a49306a756efcdeb5866ca470371d416af097..e5e3e3c766d0bc6357067c99e0e1fa2aacff5388 100644
--- a/inc/lang/nl/lang.php
+++ b/inc/lang/nl/lang.php
@@ -197,10 +197,6 @@ $lang['difflink']              = 'Link naar deze vergelijking';
 $lang['diff_type']             = 'Bekijk verschillen:';
 $lang['diff_inline']           = 'Inline';
 $lang['diff_side']             = 'Zij aan zij';
-$lang['diffpreviousedit']       = 'Vorige bewerking';
-$lang['diffnextedit']           = 'Volgende bewerking';
-$lang['difflastedit']           = 'Laatste bewerking';
-$lang['overviewrevs']          = 'Overzicht van revisies';
 $lang['line']                  = 'Regel';
 $lang['breadcrumb']            = 'Spoor';
 $lang['youarehere']            = 'Je bent hier';