diff --git a/database/migrations/structure/20230412_0037_oauth_audience.sql b/database/migrations/structure/20230412_0037_oauth_audience.sql
new file mode 100644
index 0000000..f88ddfc
--- /dev/null
+++ b/database/migrations/structure/20230412_0037_oauth_audience.sql
@@ -0,0 +1,2 @@
+ALTER TABLE `oauth_tokens`
+ADD `audience` varchar(255) NOT NULL DEFAULT '';
diff --git a/src/Controller/OAuthAuthController.php b/src/Controller/OAuthAuthController.php
index 7dd983a..34236e3 100644
--- a/src/Controller/OAuthAuthController.php
+++ b/src/Controller/OAuthAuthController.php
@@ -49,7 +49,8 @@ class OAuthAuthController implements ISecured
         }
 
         $redirectUriParsed = parse_url($redirectUri);
-        $redirectUriBase = $redirectUriParsed['scheme'] . '://' . $redirectUriParsed['host'] . $redirectUriParsed['path'];
+        $redirectUriHost = $redirectUriParsed['scheme'] . '://' . $redirectUriParsed['host'];
+        $redirectUriBase = $redirectUriHost . $redirectUriParsed['path'];
         $redirectUriQuery = [];
         if (isset($redirectUriParsed['query'])) {
             parse_str($redirectUriParsed['query'], $redirectUriQuery);
@@ -72,6 +73,7 @@ class OAuthAuthController implements ISecured
         $token->setUser($user);
         $token->setCode($code);
         $token->setAccessToken($accessToken);
+        $token->setAudience($redirectUriHost);
         $token->setCreatedDate(new DateTime());
         $token->setExpiresDate(new DateTime('+5 minutes'));
         $this->pdm->saveToDb($token);
diff --git a/src/Controller/OAuthController.php b/src/Controller/OAuthController.php
index abd7a70..c7a263f 100644
--- a/src/Controller/OAuthController.php
+++ b/src/Controller/OAuthController.php
@@ -59,6 +59,7 @@ class OAuthController
             'iat' => (int)$token->getCreatedDate()->getTimestamp(),
             'nbf' => (int)$token->getCreatedDate()->getTimestamp(),
             'exp' => (int)$token->getExpiresDate()->getTimestamp(),
+            'aud' => $token->getAudience(),
             'nonce' => $token->getNonce()
         ], $this->getUserInfoInternal(
             $this->userRepository->getById($token->getUserId()),
diff --git a/src/PersistentData/Model/OAuthToken.php b/src/PersistentData/Model/OAuthToken.php
index e82242c..2cc3553 100644
--- a/src/PersistentData/Model/OAuthToken.php
+++ b/src/PersistentData/Model/OAuthToken.php
@@ -7,7 +7,7 @@ class OAuthToken extends Model
 {
     protected static string $table = 'oauth_tokens';
 
-    protected static array $fields = ['scope', 'nonce', 'user_id', 'code', 'access_token', 'created', 'expires'];
+    protected static array $fields = ['scope', 'nonce', 'user_id', 'code', 'access_token', 'audience', 'created', 'expires'];
 
     protected static array $relations = ['user' => User::class];
 
@@ -25,6 +25,8 @@ class OAuthToken extends Model
 
     private string $accessToken = '';
 
+    private string $audience = '';
+
     private DateTime $created;
 
     private DateTime $expires;
@@ -64,6 +66,11 @@ class OAuthToken extends Model
         $this->accessToken = $accessToken;
     }
 
+    public function setAudience(string $audience): void
+    {
+        $this->audience = $audience;
+    }
+
     public function setCreatedDate(DateTime $created): void
     {
         $this->created = $created;
@@ -119,6 +126,11 @@ class OAuthToken extends Model
         return $this->accessToken;
     }
 
+    public function getAudience(): string
+    {
+        return $this->audience;
+    }
+
     public function getCreatedDate(): DateTime
     {
         return $this->created;