diff --git a/include/ipmid/message/pack.hpp b/include/ipmid/message/pack.hpp
index 388bf2f..598e650 100644
--- a/include/ipmid/message/pack.hpp
+++ b/include/ipmid/message/pack.hpp
@@ -280,6 +280,22 @@
     }
 };
 
+/** @brief Specialization of PackSingle for Payload */
+template <>
+struct PackSingle<Payload>
+{
+    static int op(Payload& p, const Payload& t)
+    {
+        if (p.bitCount != 0 || t.bitCount != 0)
+        {
+            return 1;
+        }
+        p.raw.reserve(p.raw.size() + t.raw.size());
+        p.raw.insert(p.raw.end(), t.raw.begin(), t.raw.end());
+        return 0;
+    }
+};
+
 } // namespace details
 
 } // namespace message
diff --git a/test/message/pack.cpp b/test/message/pack.cpp
index 939b356..7fb67ba 100644
--- a/test/message/pack.cpp
+++ b/test/message/pack.cpp
@@ -282,6 +282,30 @@
     ASSERT_EQ(p.raw, k);
 }
 
+TEST(PackBasics, Payload)
+{
+    ipmi::message::Payload p;
+    EXPECT_EQ(p.pack(true), 0);
+    EXPECT_EQ(p.pack(ipmi::message::Payload({0x24, 0x30})), 0);
+    EXPECT_EQ(p.raw, std::vector<uint8_t>({0b1, 0x24, 0x30}));
+}
+
+TEST(PackBasics, PayloadUnaligned)
+{
+    ipmi::message::Payload p;
+    EXPECT_EQ(p.pack(true, ipmi::message::Payload({0x24})), 1);
+    EXPECT_EQ(p.raw, std::vector<uint8_t>({0b1}));
+}
+
+TEST(PackBasics, PayloadOtherUnaligned)
+{
+    ipmi::message::Payload p, q;
+    q.appendBits(1, 1);
+    EXPECT_EQ(p.pack(true), 0);
+    EXPECT_EQ(p.pack(q), 1);
+    EXPECT_EQ(p.raw, std::vector<uint8_t>({0b1}));
+}
+
 TEST(PackAdvanced, Uints)
 {
     // all elements will be processed in order, with each multi-byte