diff --git a/do.go b/do.go
index 24729fd..b2cd7e8 100644
--- a/do.go
+++ b/do.go
@@ -12,7 +12,7 @@ func Do(req *http.Request) (*http.Response, error) {
 }
 
 func ParseJsonResponse[T any](resp *http.Response) (*T, error) {
-	if resp.StatusCode/100 == 2 {
+	if resp.StatusCode/100 != 2 {
 		return nil, fmt.Errorf(
 			"request '%s' returned status code %s\nOutput: %s",
 			resp.Request.URL.String(),