diff --git a/src/openpgp/hash.h b/src/openpgp/hash.h
index 0952c602..4f69851b 100644
--- a/src/openpgp/hash.h
+++ b/src/openpgp/hash.h
@@ -48,10 +48,10 @@ public:
   hash &operator=(const hash &) = delete;
 
   hash(uint8_t algorithm)
-    : algorithm(algorithm)
+    : algo(algorithm)
     , consumed(0)
   {
-    if (gcry_md_open(&md, algorithm, 0) != GPG_ERR_NO_ERROR)
+    if (gcry_md_open(&md, algo, 0) != GPG_ERR_NO_ERROR)
     {
       throw std::runtime_error("failed to create message digest object");
     }
@@ -83,8 +83,8 @@ public:
 
   std::vector<uint8_t> finish() const
   {
-    std::vector<uint8_t> result(gcry_md_get_algo_dlen(algorithm));
-    const void *digest = gcry_md_read(md, algorithm);
+    std::vector<uint8_t> result(gcry_md_get_algo_dlen(algo));
+    const void *digest = gcry_md_read(md, algo);
     if (digest == nullptr)
     {
       throw std::runtime_error("failed to read the digest");
@@ -99,7 +99,7 @@ public:
   }
 
 private:
-  const uint8_t algorithm;
+  const uint8_t algo;
   gcry_md_hd_t md;
   size_t consumed;
 };
diff --git a/src/openpgp/openpgp.cpp b/src/openpgp/openpgp.cpp
index 437e0d99..fa503015 100644
--- a/src/openpgp/openpgp.cpp
+++ b/src/openpgp/openpgp.cpp
@@ -139,7 +139,7 @@ public_key_block::public_key_block(const epee::span<const uint8_t> buffer)
     /* const auto timestamp  = */ serialized.read_big_endian<uint32_t>();
 
     const auto algorithm = serialized.read_big_endian<uint8_t>();
-    if (algorithm != algorithm::rsa)
+    if (algorithm != openpgp::algorithm::rsa)
     {
       throw std::runtime_error("unsupported public key algorithm");
     }
@@ -219,7 +219,7 @@ signature_rsa signature_rsa::from_buffer(const epee::span<const uint8_t> input)
   const auto signature_type = static_cast<type>(buffer.read_big_endian<uint8_t>());
 
   const auto algorithm = buffer.read_big_endian<uint8_t>();
-  if (algorithm != algorithm::rsa)
+  if (algorithm != openpgp::algorithm::rsa)
   {
     throw std::runtime_error("unsupported signature algorithm");
   }