diff --git a/src/wdm/debian/control/StandardFile.php b/src/wdm/debian/control/StandardFile.php
index 253642e..641496c 100644
--- a/src/wdm/debian/control/StandardFile.php
+++ b/src/wdm/debian/control/StandardFile.php
@@ -68,7 +68,7 @@ class StandardFile
 
     public function setPriority($priority)
     {
-        return $this->_setProperty($this["Priority"], $priority);
+        return $this->_setProperty("Priority", $priority);
     }
 
     public function setArchitecture($arch)