diff --git a/lib/Gocdb_Services/Config.php b/lib/Gocdb_Services/Config.php
index 05adbab63..6d8800cdc 100644
--- a/lib/Gocdb_Services/Config.php
+++ b/lib/Gocdb_Services/Config.php
@@ -390,7 +390,7 @@ public function getBackgroundColour3()
 
     public function getHeadingTextColour()
     {
-        $headingTextColour = $this->GetLocalInfoXML()->css->headingTextColour;
+        $headingTextColour = (string) $this->GetLocalInfoXML()->css->headingTextColour;
 
         return $headingTextColour;
     }