1 files changed, 4 insertions, 3 deletions
diff --git a/src/lib/hash/md4/md4.h b/src/lib/hash/md4/md4.h
index a0e481773..8b7ab5d70 100644
--- a/src/lib/hash/md4/md4.h
+++ b/src/lib/hash/md4/md4.h
@@ -15,7 +15,7 @@ namespace Botan {
 /**
 * MD4
 */
-class BOTAN_DLL MD4 : public MDx_HashFunction
+class BOTAN_DLL MD4 final : public MDx_HashFunction
    {
    public:
       std::string name() const override { return "MD4"; }
@@ -29,14 +29,15 @@ class BOTAN_DLL MD4 : public MDx_HashFunction
    protected:
       void compress_n(const byte input[], size_t blocks) override;
       void copy_out(byte[]) override;
+   private:
 
       /**
-      * The message buffer, exposed for use by subclasses (x86 asm)
+      * The message buffer
       */
       secure_vector<u32bit> m_M;
 
       /**
-      * The digest value, exposed for use by subclasses (x86 asm)
+      * The digest value
       */
       secure_vector<u32bit> m_digest;
    };