diff --git a/unifi/unifi.go b/unifi/unifi.go
index 41b7748..5e5f5d6 100644
--- a/unifi/unifi.go
+++ b/unifi/unifi.go
@@ -44,6 +44,16 @@ func (err *APIError) Error() string {
 	return err.Message
 }
 
+func (err *APIError) Is(target error) bool {
+	var apiError *APIError
+	if errors.As(target, &apiError) {
+		if err.RC == apiError.RC && err.Message == apiError.Message {
+			return true
+		}
+	}
+	return false
+}
+
 type Client struct {
 	// single thread client calls for CSRF, etc.
 	sync.Mutex