diff --git a/Source/Core/Core/CMakeLists.txt b/Source/Core/Core/CMakeLists.txt
index 4063e01562..f2f3df019b 100644
--- a/Source/Core/Core/CMakeLists.txt
+++ b/Source/Core/Core/CMakeLists.txt
@@ -404,6 +404,10 @@ add_library(core
   IOS/WFS/WFSSRV.h
   LibusbUtils.cpp
   LibusbUtils.h
+  MarioPartyNetplay/Discord.cpp
+  MarioPartyNetplay/Discord.h
+  MarioPartyNetplay/Gamestate.cpp
+  MarioPartyNetplay/Gamestate.h
   MemTools.cpp
   MemTools.h
   Movie.cpp
diff --git a/Source/Core/DolphinQt/MainWindow.cpp b/Source/Core/DolphinQt/MainWindow.cpp
index f33a77c6b1..f5f755b4c1 100644
--- a/Source/Core/DolphinQt/MainWindow.cpp
+++ b/Source/Core/DolphinQt/MainWindow.cpp
@@ -1495,7 +1495,7 @@ void MainWindow::NetPlayInit()
   m_netplay_discord = new DiscordHandler(this);
 #endif
 
-  connect(m_netplay_dialog, &NetPlayDialog::Stop, this, &MainWindow::RequestStop);
+  connect(m_netplay_dialog, &NetPlayDialog::Stop, this, &MainWindow::RequestStopNetplay);
   connect(m_netplay_dialog, &NetPlayDialog::rejected, this, &MainWindow::NetPlayQuit);
   connect(m_netplay_setup_dialog, &NetPlaySetupDialog::Join, this, &MainWindow::NetPlayJoin);
   connect(m_netplay_setup_dialog, &NetPlaySetupDialog::Host, this, &MainWindow::NetPlayHost);