diff --git a/lib/SimpleSAML/Configuration.php b/lib/SimpleSAML/Configuration.php
index e41303f318cb3ea0905c9bcb1266927c12916168..73b52aebcffe0fa2915c86696ad6d2776ba9d86b 100644
--- a/lib/SimpleSAML/Configuration.php
+++ b/lib/SimpleSAML/Configuration.php
@@ -76,14 +76,6 @@ class Configuration implements Utils\ClearableState
      */
     private $filename = null;
 
-    /**
-     * Temporary property that tells if the deprecated getBaseURL() method has been called or not.
-     *
-     * @var bool
-     */
-    private $deprecated_base_url_used = false;
-
-
     /**
      * Initializes a configuration from the given array.
      *