diff --git a/pkgs/os-specific/linux/kernel/config-2.6.28-i686-smp b/pkgs/os-specific/linux/kernel/config-2.6.28-i686-smp
index b85202523da..0e2cfc2fe06 100644
--- a/pkgs/os-specific/linux/kernel/config-2.6.28-i686-smp
+++ b/pkgs/os-specific/linux/kernel/config-2.6.28-i686-smp
@@ -147,7 +147,7 @@ CONFIG_STOP_MACHINE=y
 CONFIG_BLOCK=y
 CONFIG_LBD=y
 # CONFIG_BLK_DEV_IO_TRACE is not set
-# CONFIG_LSF is not set
+CONFIG_LSF=y
 # CONFIG_BLK_DEV_BSG is not set
 CONFIG_BLK_DEV_INTEGRITY=y