diff --git a/Sources/OAuth2Client/NXOAuth2Connection.m b/Sources/OAuth2Client/NXOAuth2Connection.m
index 325177db..466f9374 100644
--- a/Sources/OAuth2Client/NXOAuth2Connection.m
+++ b/Sources/OAuth2Client/NXOAuth2Connection.m
@@ -424,7 +424,7 @@ - (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLRespon
     {
         [self cancel];
         [client refreshAccessTokenAndRetryConnection:self];
-    } else if (client.authConnection != self && authenticateHeader && client) {
+    } else if (client.authConnection != self && authenticateHeader && client && !client.accessToken) {
         [self cancel];
         [client requestAccessAndRetryConnection:self];
     } else {