diff --git a/auth-server-refresh-token.md b/auth-server-refresh-token.md
index 8522ca85..157cf3a8 100755
--- a/auth-server-refresh-token.md
+++ b/auth-server-refresh-token.md
@@ -17,7 +17,7 @@ $server->setSessionStorage(new Storage\SessionStorage);
 $server->setAccessTokenStorage(new Storage\AccessTokenStorage);
 $server->setClientStorage(new Storage\ClientStorage);
 $server->setScopeStorage(new Storage\ScopeStorage);
-$server->setAccessTokenStorage(new Storage\RefreshTokenStorage);
+$server->setRefreshTokenStorage(new Storage\RefreshTokenStorage);
 
 $refreshTokenGrant = new \League\OAuth2\Server\Grant\RefreshTokenGrant();
 $server->addGrantType($refreshTokenGrant);