diff --git a/NutshellApi.php b/NutshellApi.php
index 8ef5978..460ec32 100755
--- a/NutshellApi.php
+++ b/NutshellApi.php
@@ -160,6 +160,9 @@ protected function _getApiEndpointForUser($username) {
 		curl_close($curl);
 
 		$decoded = $this->json_decode($result);
+		if ($decoded->error !== NULL) {
+			throw new NutshellApiException($decoded->error->message);
+		}
 		return 'https://' . $decoded->result->api . '/api/v1/json';
 	}