diff --git a/language/eo_EO/admin.lang.php b/language/eo_EO/admin.lang.php
index b853be515..53bcf1da5 100644
--- a/language/eo_EO/admin.lang.php
+++ b/language/eo_EO/admin.lang.php
@@ -69,4 +69,6 @@ $lang['%d day'] = '%d tago';
 $lang['%d days'] = '%d tagoj';
 $lang['%d group'] = '%d grupo';
 $lang['%d groups'] = '%d grupoj';
+$lang['%d hour'] = '%d horo';
+$lang['%d hours'] = '%d horoj';
 ?>
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