diff --git a/theme/standard/styles.php b/theme/standard/styles.php
index 6e0c7e3c7f0..24dd05dc887 100644
--- a/theme/standard/styles.php
+++ b/theme/standard/styles.php
@@ -646,11 +646,6 @@ TABLE.calendarmonth THEAD TD {
 	margin-bottom: 4px;
 }
 
-.calendarexpired {
-	color: red;
-	font-weight: bold;
-}
-
 .calendarreferer {
 	font-weight: bold;
 }