diff --git a/include/examples/KeepAlivePacket.h b/include/examples/KeepAlivePacket.h
index dfa45ae..7cfe3f6 100644
--- a/include/examples/KeepAlivePacket.h
+++ b/include/examples/KeepAlivePacket.h
@@ -5,9 +5,16 @@
 #include <sp/protocol/MessageBase.h>
 
 enum KeepAlivePacketFields {
-	KeepAliveId = 0
+	KeepAliveId = 0,
+	TestAlignField = 1,
 };
 
-using KeepAliveFields = std::tuple<std::uint64_t /*KeepAliveId*/>;
+using KeepAliveFields = std::tuple<
+	std::uint64_t, 						//<- KeepAliveId 
+	sp::BitField<std::uint16_t, 
+		sp::Field<std::uint16_t, 12>, 	//<- m_Tower 
+		sp::Field<std::uint8_t, 4> 		//<- m_Upgrade 
+	>		
+>;
 
 DeclarePacket(KeepAlive);
\ No newline at end of file
diff --git a/src/main.cpp b/src/main.cpp
index 0cde3b6..9eb8d25 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -14,7 +14,8 @@ class KeepAliveHandler : public sp::PacketHandler {
 };
 
 int main() {
-	auto keepAlive = std::make_unique<KeepAlivePacket>(69);
+	auto keepAlive = std::make_unique<KeepAlivePacket>(69, std::make_tuple(666, 9));
+
 	sp::PacketMessage* msg = keepAlive.get();
 
 	KeepAliveHandler handler;