diff --git a/theme/Theme.qml b/theme/Theme.qml
index f1a27b5..2eff68b 100644
--- a/theme/Theme.qml
+++ b/theme/Theme.qml
@@ -91,6 +91,7 @@ Item {
     readonly property color messageStatusAlertTextColor: theme.messageStatusAlertTextColor
 
     readonly property int headerSize: 50
+    readonly property int subHeaderSize: 35
     readonly property int usernameSize: 30
     readonly property int primaryTextSize: 25
     readonly property int tabSize: 25