Join or wrap errors

1 files changed, 2 insertions, 2 deletions

diff --git a/pkg/twilio/filter.go b/pkg/twilio/filter.go
index 4533f0c..1edd2aa 100644
--- a/pkg/twilio/filter.go
+++ b/pkg/twilio/filter.go
@@ -35,7 +35,7 @@ func (th *Filter) CheckRequestSignature(r *http.Request) error {
 	}
 	reqSig, err := base64.StdEncoding.DecodeString(hdr)
 	if err != nil {
-		return ErrBase64
+		return errors.Join(ErrBase64, err)
 	}
 
 	// See https://www.twilio.com/docs/usage/security#validating-requests
@@ -57,7 +57,7 @@ func (th *Filter) CheckRequestSignature(r *http.Request) error {
 	s := r.URL.String() + strings.Join(parts, "")
 	h := hmac.New(sha1.New, th.AuthToken)
 	if _, err := h.Write([]byte(s)); err != nil {
-		return fmt.Errorf("failed to write bytes to calculate signature: %s", err)
+		return fmt.Errorf("failed to write bytes to calculate signature: %w", err)
 	}
 	ourSig := h.Sum(nil)