diff --git a/kernel.spec b/kernel.spec
index 17135fda2..184d1a42d 100644
--- a/kernel.spec
+++ b/kernel.spec
@@ -1320,7 +1320,7 @@ ApplyPatch die-floppy-die.patch
 
 ApplyPatch linux-2.6.30-no-pcspkr-modalias.patch
 
-#ApplyPatch thinkpad-acpi-fix-backlight.patch
+ApplyPatch thinkpad-acpi-fix-backlight.patch
 
 # Allow to use 480600 baud on 16C950 UARTs
 ApplyPatch linux-2.6-serial-460800.patch