diff --git a/EFI/OC/Config.plist b/EFI/OC/Config.plist
index b2650b7..738a8a1 100644
--- a/EFI/OC/Config.plist
+++ b/EFI/OC/Config.plist
@@ -1259,7 +1259,7 @@
 				<key>SystemAudioVolume</key>
 				<data>Rg==</data>
 				<key>boot-args</key>
-				<string>-v keepsyms=1 -igfxcdc -igfxdvmt alcid=11</string>
+				<string>-v keepsyms=1 -igfxcdc -igfxdvmt alcid=11 -noDC9</string>
 				<key>csr-active-config</key>
 				<data>AAAAAA==</data>
 				<key>prev-lang:kbd</key>