diff --git a/Source/Core/Core/ConfigLoaders/NetPlayConfigLoader.cpp b/Source/Core/Core/ConfigLoaders/NetPlayConfigLoader.cpp
index 92dd1a9cfc..e577050597 100644
--- a/Source/Core/Core/ConfigLoaders/NetPlayConfigLoader.cpp
+++ b/Source/Core/Core/ConfigLoaders/NetPlayConfigLoader.cpp
@@ -40,6 +40,7 @@ public:
     layer->Set(Config::MAIN_OVERCLOCK, m_settings.m_OCFactor);
     for (ExpansionInterface::Slot slot : ExpansionInterface::SLOTS)
       layer->Set(Config::GetInfoForEXIDevice(slot), m_settings.m_EXIDevice[slot]);
+    layer->Set(Config::MAIN_MEMORY_CARD_SIZE, m_settings.m_MemcardSizeOverride);
     layer->Set(Config::SESSION_SAVE_DATA_WRITABLE, m_settings.m_WriteToMemcard);
     layer->Set(Config::MAIN_RAM_OVERRIDE_ENABLE, m_settings.m_RAMOverrideEnable);
     layer->Set(Config::MAIN_MEM1_SIZE, m_settings.m_Mem1Size);
diff --git a/Source/Core/Core/NetPlayClient.cpp b/Source/Core/Core/NetPlayClient.cpp
index 945bd85742..54aeb83e83 100644
--- a/Source/Core/Core/NetPlayClient.cpp
+++ b/Source/Core/Core/NetPlayClient.cpp
@@ -822,6 +822,8 @@ void NetPlayClient::OnStartGame(sf::Packet& packet)
     for (auto slot : ExpansionInterface::SLOTS)
       packet >> m_net_settings.m_EXIDevice[slot];
 
+    packet >> m_net_settings.m_MemcardSizeOverride;
+
     for (u32& value : m_net_settings.m_SYSCONFSettings)
       packet >> value;
 
diff --git a/Source/Core/Core/NetPlayProto.h b/Source/Core/Core/NetPlayProto.h
index ccb147b256..9c82ed70a3 100644
--- a/Source/Core/Core/NetPlayProto.h
+++ b/Source/Core/Core/NetPlayProto.h
@@ -47,6 +47,7 @@ struct NetSettings
   bool m_OCEnable = false;
   float m_OCFactor = 0;
   Common::EnumMap<ExpansionInterface::EXIDeviceType, ExpansionInterface::MAX_SLOT> m_EXIDevice{};
+  int m_MemcardSizeOverride = -1;
 
   std::array<u32, Config::SYSCONF_SETTINGS.size()> m_SYSCONFSettings{};
 
diff --git a/Source/Core/Core/NetPlayServer.cpp b/Source/Core/Core/NetPlayServer.cpp
index 755a2774f0..d2335149db 100644
--- a/Source/Core/Core/NetPlayServer.cpp
+++ b/Source/Core/Core/NetPlayServer.cpp
@@ -1324,6 +1324,8 @@ bool NetPlayServer::SetupNetSettings()
     settings.m_EXIDevice[slot] = device;
   }
 
+  settings.m_MemcardSizeOverride = Config::Get(Config::MAIN_MEMORY_CARD_SIZE);
+
   for (size_t i = 0; i < Config::SYSCONF_SETTINGS.size(); ++i)
   {
     std::visit(
@@ -1510,6 +1512,8 @@ bool NetPlayServer::StartGame()
   for (auto slot : ExpansionInterface::SLOTS)
     spac << static_cast<int>(m_settings.m_EXIDevice[slot]);
 
+  spac << m_settings.m_MemcardSizeOverride;
+
   for (u32 value : m_settings.m_SYSCONFSettings)
     spac << value;
 
@@ -1674,10 +1678,7 @@ bool NetPlayServer::SyncSaveData()
 
       MemoryCard::CheckPath(path, region, slot);
 
-      int size_override;
-      IniFile gameIni = SConfig::LoadGameIni(game->GetGameID(), game->GetRevision());
-      gameIni.GetOrCreateSection("Core")->Get("MemoryCardSize", &size_override, -1);
-
+      const int size_override = m_settings.m_MemcardSizeOverride;
       if (size_override >= 0 && size_override <= 4)
       {
         path.insert(path.find_last_of('.'),