diff --git a/init.tuna.rc b/init.tuna.rc
index 466ee7c..c5016d5 100755
--- a/init.tuna.rc
+++ b/init.tuna.rc
@@ -106,6 +106,8 @@
     chmod 0660 /sys/class/sec/gps/GPS_PWR_EN/value
     chown root system /sys/class/sec/gps/GPS_nRST/value
     chmod 0660 /sys/class/sec/gps/GPS_nRST/value
+    chown system system /proc/mcspi1_cs3_ctrl
+    chmod 0600 /proc/mcspi1_cs3_ctrl
 
 # ril control auto-suspend
 	chmod 0660 /sys/bus/usb/devices/usb1/power/control