diff --git a/proton b/proton
index 4d6e551d..3c3ff328 100755
--- a/proton
+++ b/proton
@@ -603,7 +603,6 @@ class Session:
         self.dlloverrides = {
                 "steam.exe": "b", #always use our special built-in steam.exe
                 "dotnetfx35.exe": "b", #replace the broken installer, as does Windows
-                "mfplay": "n" #disable built-in mfplay
         }
 
         self.compat_config = set()