diff --git a/lib/api.php b/lib/api.php
index da0c2417dcf1cab7a08cb3b126190416fe872b5c..e0097a7abf824590e8ae6744984364981e575ba1 100644
--- a/lib/api.php
+++ b/lib/api.php
@@ -94,8 +94,8 @@ class OC_API {
 				$response = new OC_OCS_Result(null, 998, 'Api method not found');
 			} 
 		} else {
-			 header('WWW-Authenticate: Basic realm="Authorisation Required"');
-			 header('HTTP/1.0 401 Unauthorized');
+			header('WWW-Authenticate: Basic realm="Authorisation Required"');
+			header('HTTP/1.0 401 Unauthorized');
 			$response = new OC_OCS_Result(null, 997, 'Unauthorised');
 		}
 		// Send the response