1 files changed, 5 insertions, 0 deletions
diff --git a/lib/crypto/c_src/cipher.h b/lib/crypto/c_src/cipher.h
index b0d9d324e1..b94873940f 100644
--- a/lib/crypto/c_src/cipher.h
+++ b/lib/crypto/c_src/cipher.h
@@ -59,6 +59,11 @@ struct cipher_type_t {
 extern ErlNifResourceType* evp_cipher_ctx_rtype;
 struct evp_cipher_ctx {
     EVP_CIPHER_CTX* ctx;
+    int iv_len;
+#if !defined(HAVE_EVP_AES_CTR)
+    ErlNifEnv* env;
+    ERL_NIF_TERM state;
+#endif
 };
 
 ERL_NIF_TERM cipher_info_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);