diff --git a/Source/Core/DolphinWX/NetWindow.cpp b/Source/Core/DolphinWX/NetWindow.cpp
index bb7044e313..514c51ae03 100644
--- a/Source/Core/DolphinWX/NetWindow.cpp
+++ b/Source/Core/DolphinWX/NetWindow.cpp
@@ -545,6 +545,17 @@ void NetPlayDiag::OnThread(wxCommandEvent& event)
 
 	m_player_lbox->SetSelection(selection);
 
+	// flash window in taskbar when someone joins if window isn't active
+	static u8 numPlayers = 1;
+	bool focus = (wxWindow::FindFocus() == this || (wxWindow::FindFocus() != nullptr && wxWindow::FindFocus()->GetParent() == this) ||
+	             (wxWindow::FindFocus() != nullptr && wxWindow::FindFocus()->GetParent() != nullptr
+	              && wxWindow::FindFocus()->GetParent()->GetParent() == this));
+	if (netplay_server != nullptr && numPlayers < m_playerids.size() && !focus)
+	{
+		RequestUserAttention();
+	}
+	numPlayers = m_playerids.size();
+
 	switch (event.GetId())
 	{
 	case NP_GUI_EVT_CHANGE_GAME :