diff --git a/cipher.go b/cipher.go
index 8d8f12fe..8b2b2859 100644
--- a/cipher.go
+++ b/cipher.go
@@ -149,7 +149,7 @@ type evpCipher struct {
 }
 
 func newEVPCipher(key []byte, kind cipherKind) (*evpCipher, error) {
-	cipher := loadCipher(kind, cipherModeECB)
+	cipher := loadCipher(kind, cipherModeCBC)
 	if cipher == nil {
 		return nil, errors.New("crypto/cipher: unsupported cipher: " + kind.String())
 	}