diff --git a/Resources/ALC1220/layout29.xml b/Resources/ALC1220/layout29.xml
index 8f0ec811a1..58a7923ab5 100644
--- a/Resources/ALC1220/layout29.xml
+++ b/Resources/ALC1220/layout29.xml
@@ -19,16 +19,10 @@
 			<dict/>
 			<key>LineIn</key>
 			<dict>
-				<key>0</key>
-				<dict>
-					<key>MuteGPIO</key>
-					<integer>1342242841</integer>
-				</dict>
-				<key>1</key>
-				<dict>
-					<key>MuteGPIO</key>
-					<integer>1342242842</integer>
-				</dict>
+				<key>MuteGPIO</key>
+				<integer>1342242841</integer>
+				<key>MuteGPIO</key>
+				<integer>1342242842</integer>
 			</dict>
 			<key>Mic</key>
 			<dict>