diff --git a/OptimizationProfiles/DevilutionX.profdata b/OptimizationProfiles/DevilutionX.profdata
new file mode 100644
index 000000000..4fc37bf71
Binary files /dev/null and b/OptimizationProfiles/DevilutionX.profdata differ
diff --git a/Source/loadsave.cpp b/Source/loadsave.cpp
index 7516d8b34..ee08fd06f 100644
--- a/Source/loadsave.cpp
+++ b/Source/loadsave.cpp
@@ -503,6 +503,8 @@ static void LoadMonster(int i)
 	CopyChar(tbuff, &pMonster->leaderflag);
 	CopyChar(tbuff, &pMonster->packsize);
 	CopyChar(tbuff, &pMonster->mlid);
+	if (pMonster->mlid == plr[myplr]._plid)
+		pMonster->mlid = NO_LIGHT; // Correct incorect values in old saves
 
 	// Omit pointer mName;
 	// Omit pointer MType;