diff --git a/providers/implementations/ciphers/cipher_aes_siv.c b/providers/implementations/ciphers/cipher_aes_siv.c
index 6a5d211a7d..18be36e9b3 100644
--- a/providers/implementations/ciphers/cipher_aes_siv.c
+++ b/providers/implementations/ciphers/cipher_aes_siv.c
@@ -49,9 +49,6 @@ static int siv_init(void *vctx, const unsigned char *key, size_t keylen,
 
     ctx->enc = enc;
 
-    if (iv != NULL)
-        return 0;
-
     if (key != NULL) {
         if (keylen != ctx->keylen) {
             ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_KEY_LENGTH);