diff --git a/Crypto/src/Envelope.cpp b/Crypto/src/Envelope.cpp
index bfce72685..c74fc25da 100644
--- a/Crypto/src/Envelope.cpp
+++ b/Crypto/src/Envelope.cpp
@@ -29,8 +29,12 @@ Envelope::Envelope(int cipherNID): _pCipher(EVP_get_cipherbynid(cipherNID)),
 {
 	poco_check_ptr(_pCipher);
 	poco_check_ptr(_pCtx);
+#if OPENSSL_VERSION_NUMBER >= 0x10100000L
 	if (1 != EVP_CIPHER_CTX_init(_pCtx))
 		handleErrors(std::string("Envelope():EVP_CIPHER_CTX_init()"));
+#else
+	EVP_CIPHER_CTX_init(_pCtx);
+#endif
 	_iv.resize(ivSize(), 0);
 }