diff --git a/board/czechlight/clearfog/linux.fragment b/board/czechlight/clearfog/linux.fragment
index 71cd8bd..4010f68 100644
--- a/board/czechlight/clearfog/linux.fragment
+++ b/board/czechlight/clearfog/linux.fragment
@@ -1,6 +1,3 @@
-# enable 1GB of RAM, not just 750 MB
-CONFIG_HIGHMEM=y
-
 # this is a part of the Clearfog Base carrier
 CONFIG_SENSORS_MCP3021=y
 
@@ -42,7 +39,6 @@
 CONFIG_MACH_ARMADA_XP=n
 CONFIG_MACH_DOVE=n
 CONFIG_NR_CPUS=2
-CONFIG_HIGHMEM=n
 CONFIG_MV643XX_ETH=n
 CONFIG_KEYBOARD_ATKBD=N
 CONFIG_INPUT_MOUSE=N