diff --git a/microcode_ctl.spec b/microcode_ctl.spec
index c9ff074..e913ee5 100644
--- a/microcode_ctl.spec
+++ b/microcode_ctl.spec
@@ -71,6 +71,7 @@ vendor=`cat /proc/cpuinfo | grep "^vendor_id" | sort -u | awk -F ": " '{ print $
 family=`cat /proc/cpuinfo | grep "^cpu family" | sort -u | awk -F ": " '{ print $2 }'`
 [ $family -lt 6 ] && exit 0
 /sbin/chkconfig --add microcode_ctl
+/sbin/chkconfig microcode_ctl on
 
 %triggerpostun -- microcode_ctl
 # Only enable on Intel 686's and above.