diff --git a/plugins/qca-ossl/qca-ossl.cpp b/plugins/qca-ossl/qca-ossl.cpp
index f9bd99e7..b335e2eb 100644
--- a/plugins/qca-ossl/qca-ossl.cpp
+++ b/plugins/qca-ossl/qca-ossl.cpp
@@ -40,8 +40,9 @@
 #include <openssl/x509v3.h>
 #include <openssl/pkcs12.h>
 #include <openssl/ssl.h>
-
+#if !defined(LIBRESSL_VERSION_NUMBER)
 #include <openssl/kdf.h>
+#endif
 
 using namespace QCA;
 
@@ -1255,6 +1256,7 @@ public:
 protected:
 };
 
+#if !defined(LIBRESSL_VERSION_NUMBER)
 class opensslHkdfContext : public HKDFContext
 {
     Q_OBJECT
@@ -1284,6 +1286,7 @@ public:
 		return out;
 	}
 };
+#endif
 
 class opensslHMACContext : public MACContext
 {
@@ -2823,7 +2826,7 @@ public:
 		}
 		else
 		{
-			RSAerr(RSA_F_RSA_OSSL_PRIVATE_DECRYPT, RSA_R_UNKNOWN_PADDING_TYPE);
+			RSAerr(RSA_F_RSA_EAY_PRIVATE_DECRYPT, RSA_R_UNKNOWN_PADDING_TYPE);
 			return -1;
 		}
 
@@ -7268,7 +7271,9 @@ public:
 #endif
 		list += QStringLiteral("pbkdf1(sha1)");
 		list += QStringLiteral("pbkdf2(sha1)");
+#if !defined(LIBRESSL_VERSION_NUMBER)
 		list += QStringLiteral("hkdf(sha256)");
+#endif
 		list += QStringLiteral("pkey");
 		list += QStringLiteral("dlgroup");
 		list += QStringLiteral("rsa");
@@ -7337,8 +7342,10 @@ public:
 #endif
 		else if ( type == QLatin1String("pbkdf2(sha1)") )
 			return new opensslPbkdf2Context( this, type );
+#if !defined(LIBRESSL_VERSION_NUMBER)
 		else if ( type == QLatin1String("hkdf(sha256)") )
 			return new opensslHkdfContext( this, type );
+#endif
 		else if ( type == QLatin1String("hmac(md5)") )
 			return new opensslHMACContext( EVP_md5(), this, type );
 		else if ( type == QLatin1String("hmac(sha1)") )