diff --git a/application/controllers/api/frontend/v1/Profil.php b/application/controllers/api/frontend/v1/Profil.php
index 7e5a69255..f234fc30e 100644
--- a/application/controllers/api/frontend/v1/Profil.php
+++ b/application/controllers/api/frontend/v1/Profil.php
@@ -221,8 +221,9 @@ class Profil extends FHCAPI_Controller
 		$intern_email["email"] = $uid . "@" . DOMAIN;
 		$extern_email = array();
 		$extern_email["type"] = "alias";
-		$extern_email["email"] = $benutzer_res->alias . "@" . DOMAIN;
-		$res->emails = array($intern_email, $extern_email);
+		
+		$extern_email["email"] = $benutzer_res->alias ? ($benutzer_res->alias . "@" . DOMAIN) : null;
+		$res->emails = $extern_email?[$intern_email, $extern_email]:[$intern_email];
 
 		$res->funktionen = $benutzer_funktion_res;
 		$res->mailverteiler = $mailverteiler_res;
@@ -334,8 +335,9 @@ class Profil extends FHCAPI_Controller
 		$intern_email["email"] = $this->uid . "@" . DOMAIN;
 		$extern_email = array();
 		$extern_email["type"] = "alias";
-		$extern_email["email"] = $mitarbeiter_res->alias . "@" . DOMAIN;
-		$res->emails = [$intern_email, $extern_email];
+		
+		$extern_email["email"] = $mitarbeiter_res->alias? ($mitarbeiter_res->alias . "@" . DOMAIN) : null;
+		$res->emails = $extern_email["email"]?[$intern_email, $extern_email]:[$intern_email];
 
 		$res->funktionen = $benutzer_funktion_res;
 		$res->standort_telefon = $telefon_res;