diff --git a/htdocs/PI/index.php b/htdocs/PI/index.php
index 2aa31e9c9..117558398 100644
--- a/htdocs/PI/index.php
+++ b/htdocs/PI/index.php
@@ -390,7 +390,7 @@ function authByCert() {
             // Check if it is registered API Authentication credential.
 
             $authEntServ = \Factory::getAPIAuthenticationService();
-            $authEnt = $authEntServ->getAPIAuthentication($this->dn, "X509");
+            $authEnt = $authEntServ->getAPIAuthentication($this->dn);
 
             if (!is_null($authEnt)) {
                 $authEntServ->updateLastUseTime($authEnt);
diff --git a/lib/Gocdb_Services/APIAuthenticationService.php b/lib/Gocdb_Services/APIAuthenticationService.php
index 8b939a04a..5aa78e238 100644
--- a/lib/Gocdb_Services/APIAuthenticationService.php
+++ b/lib/Gocdb_Services/APIAuthenticationService.php
@@ -37,21 +37,19 @@ function __construct() {
      * Returns the APIAuthentication entity associated with the given identifier.
      *
      * @param string $ident Identifier (e.g. X.509 DN as string)
-     * @param string $type  Identifyer type (e.g. "X509")
      * @return \APIAuthentication APIAuthentication associated with this identifier
      */
-    public function getAPIAuthentication($ident, $type) {
+    public function getAPIAuthentication($ident) {
 
         if (!is_string($ident)) {
             throw new \LogicException("Expected string APIAuthentication identifier.");
         }
 
         $dql = "SELECT a FROM APIAuthentication a " .
-                "WHERE (a.identifier = :ident AND a.type = :type)" ;
+                "WHERE (a.identifier = :ident)" ;
 
         $qry = $this->em->createQuery($dql);
         $qry->setParameter('ident', $ident);
-        $qry->setParameter('type', $type);
 
         $apiAuth = $qry->getOneOrNullResult();