diff --git a/include/Nazara/Network/NetPacket.inl b/include/Nazara/Network/NetPacket.inl
index 6d55831d4..eb68d1e53 100644
--- a/include/Nazara/Network/NetPacket.inl
+++ b/include/Nazara/Network/NetPacket.inl
@@ -155,7 +155,9 @@ namespace Nz
 	{
 		InitStream(HeaderSize + size, HeaderSize, OpenMode_ReadOnly);
 		m_buffer->Resize(HeaderSize + size);
-		std::memcpy(m_buffer->GetBuffer() + HeaderSize, ptr, size);
+
+		if (ptr)
+			std::memcpy(m_buffer->GetBuffer() + HeaderSize, ptr, size);
 
 		m_netCode = netCode;
 	}
diff --git a/src/Nazara/Network/ENetPeer.cpp b/src/Nazara/Network/ENetPeer.cpp
index d9ca262cb..94e223ae9 100644
--- a/src/Nazara/Network/ENetPeer.cpp
+++ b/src/Nazara/Network/ENetPeer.cpp
@@ -637,12 +637,13 @@ namespace Nz
 			}
 		}
 
-		if (startCommand)
+		if (!startCommand)
 		{
 			ENetProtocol hostCommand = *command;
 			hostCommand.header.reliableSequenceNumber = startSequenceNumber;
 
-			if (!QueueIncomingCommand(hostCommand, nullptr, totalLength, ENetPacketFlag_Reliable, fragmentCount))
+			startCommand = QueueIncomingCommand(hostCommand, nullptr, totalLength, ENetPacketFlag_Reliable, fragmentCount);
+			if (!startCommand)
 				return false;
 		}