diff --git a/src/test/java/net/minestom/server/network/packet/DeclareCommandsPacketTest.java b/src/test/java/net/minestom/server/network/packet/DeclareCommandsPacketTest.java
new file mode 100644
index 000000000..9c67e0d09
--- /dev/null
+++ b/src/test/java/net/minestom/server/network/packet/DeclareCommandsPacketTest.java
@@ -0,0 +1,25 @@
+package net.minestom.server.network.packet;
+
+import net.minestom.server.network.NetworkBuffer;
+import net.minestom.server.network.packet.server.play.DeclareCommandsPacket;
+import org.junit.jupiter.api.Test;
+
+import java.util.List;
+
+import static net.minestom.server.network.packet.server.play.DeclareCommandsPacket.getFlag;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+public class DeclareCommandsPacketTest {
+
+    @Test
+    void testWriteGameProfileArg() {
+        var root = new DeclareCommandsPacket.Node();
+        root.flags = getFlag(DeclareCommandsPacket.NodeType.ARGUMENT, false, false, false);
+        root.parser = "minecraft:game_profile";
+        var packet = new DeclareCommandsPacket(List.of(root), 0);
+
+        var array = NetworkBuffer.makeArray(DeclareCommandsPacket.SERIALIZER, packet);
+        var readPacket = NetworkBuffer.wrap(array, 0, array.length).read(DeclareCommandsPacket.SERIALIZER);
+        assertEquals("minecraft:game_profile", readPacket.nodes().getFirst().parser);
+    }
+}