diff --git a/Crypto/src/RSAKeyImpl.cpp b/Crypto/src/RSAKeyImpl.cpp
index 2fbd555f2..5e8ab31fd 100644
--- a/Crypto/src/RSAKeyImpl.cpp
+++ b/Crypto/src/RSAKeyImpl.cpp
@@ -37,6 +37,7 @@ RSAKeyImpl::RSAKeyImpl(const X509Certificate& cert):
 	const X509* pCert = cert.certificate();
 	EVP_PKEY* pKey = X509_get_pubkey(const_cast<X509*>(pCert));
 	_pRSA = EVP_PKEY_get1_RSA(pKey);
+	EVP_PKEY_free(pKey);
 }