From b0d6f143f6c01e267a878c149b228613593aa7cf Mon Sep 17 00:00:00 2001
From: Rachael Alexanderson <madame-rachelle@users.noreply.github.com>
Date: Thu, 27 Feb 2025 12:56:44 -0500
Subject: [PATCH] - fix classic doom.doom filter

---
 src/d_main.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/d_main.cpp b/src/d_main.cpp
index 34ae5b3696..875f892bf9 100644
--- a/src/d_main.cpp
+++ b/src/d_main.cpp
@@ -3161,9 +3161,10 @@ static int D_InitGame(const FIWADInfo* iwad_info, std::vector<std::string>& allw
 
 	lfi.gameTypeFilter.push_back(LumpFilterIWAD.GetChars());
 	// Workaround for old Doom filter names.
-	if (LumpFilterIWAD.Compare("doom.id.doom") == 0)
+	if (LumpFilterIWAD.IndexOf("doom.id.doom") >= 0)
 	{
-		lfi.gameTypeFilter.push_back("doom.doom");
+		FString NewFilterName = (FString)"doom.doom" + LumpFilterIWAD.Mid(12); // "doom.id.doom" is 12 characters
+		lfi.gameTypeFilter.push_back(NewFilterName.GetChars());
 	}